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Ben "The Hosk" Hosking

Ben "The Hosk" Hosking

3 years ago

The Yellow Cat Test Is Typically Failed by Software Developers.

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VIP Graphics

VIP Graphics

3 years ago

Leaked pitch deck for Metas' new influencer-focused live-streaming service

As part of Meta's endeavor to establish an interactive live-streaming platform, the company is testing with influencers.

The NPE (new product experimentation team) has been testing Super since late 2020.

Super by Meta leaked pitch deck: Facebook’s new livestreaming platform for influencers & sponsors

Bloomberg defined Super as a Cameo-inspired FaceTime-like gadget in 2020. The tool has evolved into a Twitch-like live streaming application.

Less than 100 creators have utilized Super: Creators can request access on Meta's website. Super isn't an Instagram, Facebook, or Meta extension.

“It’s a standalone project,” the spokesperson said about Super. “Right now, it’s web only. They have been testing it very quietly for about two years. The end goal [of NPE projects] is ultimately creating the next standalone project that could be part of the Meta family of products.” The spokesperson said the outreach this week was part of a drive to get more creators to test Super.

A 2021 pitch deck from Super reveals the inner workings of Meta.

The deck gathered feedback on possible sponsorship models, with mockups of brand deals & features. Meta reportedly paid creators $200 to $3,000 to test Super for 30 minutes.

Meta's pitch deck for Super live streaming was leaked.

What were the slides in the pitch deck for Metas Super?

Embed not supported: see full deck & article here →

View examples of Meta's pitch deck for Super:

Product Slides, first

Super by Meta leaked pitch deck — Product Slide: Facebook’s new livestreaming platform for influencers & sponsors

The pitch deck begins with Super's mission:

Super is a Facebook-incubated platform which helps content creators connect with their fans digitally, and for super fans to meet and support their favorite creators. In the spirit of Late Night talk shows, we feature creators (“Superstars”), who are guests at a live, hosted conversation moderated by a Host.

This slide (and most of the deck) is text-heavy, with few icons, bullets, and illustrations to break up the content. Super's online app status (which requires no download or installation) might be used as a callout (rather than paragraph-form).

Super by Meta leaked pitch deck — Product Slide: Facebook’s new livestreaming platform for influencers & sponsors

Meta's Super platform focuses on brand sponsorships and native placements, as shown in the slide above.

One of our theses is the idea that creators should benefit monetarily from their Super experiences, and we believe that offering a menu of different monetization strategies will enable the right experience for each creator. Our current focus is exploring sponsorship opportunities for creators, to better understand what types of sponsor placements will facilitate the best experience for all Super customers (viewers, creators, and advertisers).

Colorful mockups help bring Metas vision for Super to life.

2. Slide Features

Super's pitch deck focuses on the platform's features. The deck covers pre-show, pre-roll, and post-event for a Sponsored Experience.

  • Pre-show: active 30 minutes before the show's start

  • Pre-roll: Play a 15-minute commercial for the sponsor before the event (auto-plays once)

  • Meet and Greet: This event can have a branding, such as Meet & Greet presented by [Snickers]

  • Super Selfies: Makers and followers get a digital souvenir to post on social media.

  • Post-Event: Possibility to draw viewers' attention to sponsored content/links during the after-show

Almost every screen displays the Sponsor logo, link, and/or branded background. Viewers can watch sponsor video while waiting for the event to start.

Slide 3: Business Model

Meta's presentation for Super is incomplete without numbers. Super's first slide outlines the creator, sponsor, and Super's obligations. Super does not charge creators any fees or commissions on sponsorship earnings.

Super by Meta leaked pitch deck — Pricing Slide: Facebook’s new livestreaming platform for influencers & sponsors

How to make a great pitch deck

We hope you can use the Super pitch deck to improve your business. Bestpitchdeck.com/super-meta is a bookmarkable link.

You can also use one of our expert-designed templates to generate a pitch deck.

Our team has helped close $100M+ in agreements and funding for premier companies and VC firms. Use our presentation templates, one-pagers, or financial models to launch your pitch.

Every pitch must be audience-specific. Our team has prepared pitch decks for various sectors and fundraising phases.

Software Pitch Deck & SaaS Investor Presentation Template by VIP.graphics

Pitch Deck Software VIP.graphics produced a popular SaaS & Software Pitch Deck based on decks that closed millions in transactions & investments for orgs of all sizes, from high-growth startups to Fortune 100 enterprises. This easy-to-customize PowerPoint template includes ready-made features and key slides for your software firm.

Accelerator Pitch Deck The Accelerator Pitch Deck template is for early-stage founders seeking funding from pitch contests, accelerators, incubators, angels, or VC companies. Winning a pitch contest or getting into a top accelerator demands a strategic investor pitch.

Pitch Deck Template Series Startup and founder pitch deck template: Workable, smart slides. This pitch deck template is for companies, entrepreneurs, and founders raising seed or Series A finance.

M&A Pitch Deck Perfect Pitch Deck is a template for later-stage enterprises engaging more sophisticated conversations like M&A, late-stage investment (Series C+), or partnerships & funding. Our team prepared this presentation to help creators confidently pitch to investment banks, PE firms, and hedge funds (and vice versa).

Browse our growing variety of industry-specific pitch decks.

Will Lockett

Will Lockett

3 years ago

The world will be changed by this molten salt battery.

Salt crystals — Pexels

Four times the energy density and a fraction of lithium-cost ion's

As the globe abandons fossil fuels, batteries become more important. EVs, solar, wind, tidal, wave, and even local energy grids will use them. We need a battery revolution since our present batteries are big, expensive, and detrimental to the environment. A recent publication describes a battery that solves these problems. But will it be enough?

Sodium-sulfur molten salt battery. It has existed for a long time and uses molten salt as an electrolyte (read more about molten salt batteries here). These batteries are cheaper, safer, and more environmentally friendly because they use less eco-damaging materials, are non-toxic, and are non-flammable.

Previous molten salt batteries used aluminium-sulphur chemistries, which had a low energy density and required high temperatures to keep the salt liquid. This one uses a revolutionary sodium-sulphur chemistry and a room-temperature-melting salt, making it more useful, affordable, and eco-friendly. To investigate this, researchers constructed a button-cell prototype and tested it.

First, the battery was 1,017 mAh/g. This battery is four times as energy dense as high-density lithium-ion batteries (250 mAh/g).

No one knows how much this battery would cost. A more expensive molten-salt battery costs $15 per kWh. Current lithium-ion batteries cost $132/kWh. If this new molten salt battery costs the same as present cells, it will be 90% cheaper.

This room-temperature molten salt battery could be utilized in an EV. Cold-weather heaters just need a modest backup battery.

The ultimate EV battery? If used in a Tesla Model S, you could install four times the capacity with no weight gain, offering a 1,620-mile range. This huge battery pack would cost less than Tesla's. This battery would nearly perfect EVs.

Or would it?

The battery's capacity declined by 50% after 1,000 charge cycles. This means that our hypothetical Model S would suffer this decline after 1.6 million miles, but for more cheap vehicles that use smaller packs, this would be too short. This test cell wasn't supposed to last long, so this is shocking. Future versions of this cell could be modified to live longer.

This affordable and eco-friendly cell is best employed as a grid-storage battery for renewable energy. Its safety and affordable price outweigh its short lifespan. Because this battery is made of easily accessible materials, it may be utilized to boost grid-storage capacity without causing supply chain concerns or EV battery prices to skyrocket.

Researchers are designing a bigger pouch cell (like those in phones and laptops) for this purpose. The battery revolution we need could be near. Let’s just hope it isn’t too late.

Gajus Kuizinas

Gajus Kuizinas

3 years ago

How a few lines of code were able to eliminate a few million queries from the database

I was entering tens of millions of records per hour when I first published Slonik PostgreSQL client for Node.js. The data being entered was usually flat, making it straightforward to use INSERT INTO ... SELECT * FROM unnset() pattern. I advocated the unnest approach for inserting rows in groups (that was part I).

Bulk inserting nested data into the database

However, today I’ve found a better way: jsonb_to_recordset.

jsonb_to_recordset expands the top-level JSON array of objects to a set of rows having the composite type defined by an AS clause.

jsonb_to_recordset allows us to query and insert records from arbitrary JSON, like unnest. Since we're giving JSON to PostgreSQL instead of unnest, the final format is more expressive and powerful.

SELECT *
FROM json_to_recordset('[{"name":"John","tags":["foo","bar"]},{"name":"Jane","tags":["baz"]}]')
AS t1(name text, tags text[]);
 name |   tags
------+-----------
 John | {foo,bar}
 Jane | {baz}
(2 rows)

Let’s demonstrate how you would use it to insert data.

Inserting data using json_to_recordset

Say you need to insert a list of people with attributes into the database.

const persons = [
  {
    name: 'John',
    tags: ['foo', 'bar']
  },
  {
    name: 'Jane',
    tags: ['baz']
  }
];

You may be tempted to traverse through the array and insert each record separately, e.g.

for (const person of persons) {
  await pool.query(sql`
    INSERT INTO person (name, tags)
    VALUES (
      ${person.name},
      ${sql.array(person.tags, 'text[]')}
    )
  `);
}

It's easier to read and grasp when working with a few records. If you're like me and troubleshoot a 2M+ insert query per day, batching inserts may be beneficial.

What prompted the search for better alternatives.

Inserting using unnest pattern might look like this:

await pool.query(sql`
  INSERT INTO public.person (name, tags)
  SELECT t1.name, t1.tags::text[]
  FROM unnest(
    ${sql.array(['John', 'Jane'], 'text')},
    ${sql.array(['{foo,bar}', '{baz}'], 'text')}
  ) AS t1.(name, tags);
`);

You must convert arrays into PostgreSQL array strings and provide them as text arguments, which is unsightly. Iterating the array to create slices for each column is likewise unattractive.

However, with jsonb_to_recordset, we can:

await pool.query(sql`
  INSERT INTO person (name, tags)
  SELECT *
  FROM jsonb_to_recordset(${sql.jsonb(persons)}) AS t(name text, tags text[])
`);

In contrast to the unnest approach, using jsonb_to_recordset we can easily insert complex nested data structures, and we can pass the original JSON document to the query without needing to manipulate it.

In terms of performance they are also exactly the same. As such, my current recommendation is to prefer jsonb_to_recordset whenever inserting lots of rows or nested data structures.

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Desiree Peralta

Desiree Peralta

3 years ago

Why Now Is Your Chance To Create A Millionaire Career

People don’t believe in influencers anymore; they need people like you.

Photo by Ivan Samkov

Social media influencers have dominated for years. We've seen videos, images, and articles of *famous* individuals unwrapping, reviewing, and endorsing things.

This industry generates billions. This year, marketers spent $2.23 billion on Instagram, $1 million on Youtube, and $775 million on Tiktok. This marketing has helped start certain companies.

Influencers are dying, so ordinary people like us may take over this billion-dollar sector. Why?

Why influencers are perishing

Most influencers lie to their fans, especially on Instagram. Influencers' first purpose was to make their lives so flawless that others would want to buy their stuff.

In 2015, an Australian influencer with 600,000 followers went viral for revealing all her photos and everything she did to seem great before deleting her account.

“I dramatically edited the pictures, I manipulated the environements, and made my life look perfect in social media… I remember I obsessively checked the like count for a full week since uploading it, a selfie that now has close to 2,500 likes. It got 5 likes. This was when I was so hungry for social media validation … This was the reason why I quit social media: for me, personally, it consumed me. I wasn’t living in a 3D world.”

Influencers then lost credibility.

Influencers seem to live in a bubble, separate from us. Thanks to self-popularity love's and constant awareness campaigns, people find these people ridiculous.

Influencers are praised more for showing themselves as natural and common than for showing luxuries and lies.

Influencer creating self-awareness

Little by little, they are dying, making room for a new group to take advantage of this multi-million dollar business, which gives us (ordinary people) a big opportunity to grow on any content creation platform we want.

Why this is your chance to develop on any platform for creating content

In 2021, I wroteNot everyone who talks about money is a Financial Advisor, be careful of who you take advice from,”. In it, I warned that not everyone with a large following is a reputable source of financial advice.

Other writers hated this post and said I was wrong.

People don't want Jeff Bezos or Elon Musk's counsel, they said. They prefer to hear about their neighbor's restroom problems or his closest friend's terrible business.

Real advice from regular folks.

And I found this was true when I returned to my independent YouTube channel and had more than 1000 followers after having abandoned it with fewer than 30 videos in 2021 since there were already many personal finance and travel channels and I thought mine wasn't special.

People appreciated my videos because I was a 20-something girl trying to make money online, and they believed my advice more than that of influencers with thousands of followers.

I think today is the greatest time to grow on any platform as an ordinary person. Normal individuals give honest recommendations about what works for them and look easier to make because they have the same options as us.

Nobody cares how a millionaire acquired a Lamborghini unless it's entertaining. Education works now. Real counsel from average people is replicable.

Many individuals don't appreciate how false influencers seem (unreal bodies and excessive surgery and retouching) since it makes them feel uneasy.

That's why body-positive advertisements have been so effective, but they've lost ground in places like Tiktok, where the audience wants more content from everyday people than influencers living amazing lives. More people will relate to your content if you appear genuine.

Last thoughts

Influencers are dwindling. People want more real people to give real advice and demonstrate an ordinary life.

People will enjoy anything you tell about your daily life as long as you provide value, and you can build a following rapidly if you're honest.

This is a millionaire industry that is getting more expensive and will go with what works, so stand out immediately.

INTΞGRITY team

INTΞGRITY team

3 years ago

Privacy Policy

Effective date: August 31, 2022

This Privacy Statement describes how INTΞGRITY ("we," or "us") collects, uses, and discloses your personal information. This Privacy Statement applies when you use our websites, mobile applications, and other online products and services that link to this Privacy Statement (collectively, our "Services"), communicate with our customer care team, interact with us on social media, or otherwise interact with us.

This Privacy Policy may be modified from time to time. If we make modifications, we will update the date at the top of this policy and, in certain instances, we may give you extra notice (such as adding a statement to our website or providing you with a notification). We encourage you to routinely review this Privacy Statement to remain informed about our information practices and available options.

INFORMATION COLLECTION

The Data You Provide to Us

We collect information that you directly supply to us. When you register an account, fill out a form, submit or post material through our Services, contact us via third-party platforms, request customer assistance, or otherwise communicate with us, you provide us with information directly. We may collect your name, display name, username, bio, email address, company information, your published content, including your avatar image, photos, posts, responses, and any other information you voluntarily give.

In certain instances, we may collect the information you submit about third parties. We will use your information to fulfill your request and will not send emails to your contacts unrelated to your request unless they separately opt to receive such communications or connect with us in some other way.

We do not collect payment details via the Services.

Automatically Collected Information When You Communicate with Us

In certain cases, we automatically collect the following information:

We gather data regarding your behavior on our Services, such as your reading history and when you share links, follow users, highlight posts, and like posts.

Device and Usage Information: We gather information about the device and network you use to access our Services, such as your hardware model, operating system version, mobile network, IP address, unique device identifiers, browser type, and app version. We also collect information regarding your activities on our Services, including access times, pages viewed, links clicked, and the page you visited immediately prior to accessing our Services.

Information Obtained Through Cookies and Comparable Tracking Technologies: We collect information about you through tracking technologies including cookies and web beacons. Cookies are little data files kept on your computer's hard disk or device's memory that assist us in enhancing our Services and your experience, determining which areas and features of our Services are the most popular, and tracking the number of visitors. Web beacons (also known as "pixel tags" or "clear GIFs") are electronic pictures that we employ on our Services and in our communications to assist with cookie delivery, session tracking, and usage analysis. We also partner with third-party analytics providers who use cookies, web beacons, device identifiers, and other technologies to collect information regarding your use of our Services and other websites and applications, including your IP address, web browser, mobile network information, pages viewed, time spent on pages or in mobile apps, and links clicked. INTΞGRITY and others may use your information to, among other things, analyze and track data, evaluate the popularity of certain content, present content tailored to your interests on our Services, and better comprehend your online activities. See Your Options for additional information on cookies and how to disable them.

Information Obtained from Outside Sources

We acquire information from external sources. We may collect information about you, for instance, through social networks, accounting service providers, and data analytics service providers. In addition, if you create or log into your INTΞGRITY account via a third-party platform (such as Apple, Facebook, Google, or Twitter), we will have access to certain information from that platform, including your name, lists of friends or followers, birthday, and profile picture, in accordance with the authorization procedures determined by that platform.

We may derive information about you or make assumptions based on the data we gather. We may deduce your location based on your IP address or your reading interests based on your reading history, for instance.

USAGE OF INFORMATION

We use the information we collect to deliver, maintain, and enhance our Services, including publishing and distributing user-generated content, and customizing the posts you see. Additionally, we utilize collected information to: create and administer your INTΞGRITY account;

Send transaction-related information, including confirmations, receipts, and user satisfaction surveys;

Send you technical notices, security alerts, and administrative and support messages;

Respond to your comments and queries and offer support;

Communicate with you about new INTΞGRITY content, goods, services, and features, as well as other news and information that we believe may be of interest to you (see Your Choices for details on how to opt out of these communications at any time);

Monitor and evaluate usage, trends, and activities associated with our Services;

Detect, investigate, and prevent security incidents and other harmful, misleading, fraudulent, or illegal conduct, and safeguard INTΞGRITY’s and others' rights and property;

Comply with our legal and financial requirements; and Carry out any other purpose specified to you at the time the information was obtained.

SHARING OF INFORMATION

We share personal information where required by law or as otherwise specified in this policy:

Personal information is shared with other Service users. If you use our Services to publish content, make comments, or send private messages, for instance, certain information about you, such as your name, photo, bio, and other account information you may supply, as well as information about your activity on our Services, will be available to others (e.g., your followers and who you follow, recent posts, likes, highlights, and responses).

We share personal information with vendors, service providers, and consultants who require access to such information to perform services on our behalf, such as companies that assist us with web hosting, storage, and other infrastructure, analytics, fraud prevention, and security, customer service, communications, and marketing.

We may release personally identifiable information if we think that doing so is in line with or required by any relevant law or legal process, including authorized demands from public authorities to meet national security or law enforcement obligations. If we intend to disclose your personal information in response to a court order, we will provide you with prior notice so that you may contest the disclosure (for example, by seeking court intervention), unless we are prohibited by law or believe that doing so could endanger others or lead to illegal conduct. We shall object to inappropriate legal requests for information regarding users of our Services.

If we believe your actions are inconsistent with our user agreements or policies, if we suspect you have violated the law, or if we believe it is necessary to defend the rights, property, and safety of INTΞGRITY, our users, the public, or others, we may disclose your personal information.

We share personal information with our attorneys and other professional advisers when necessary for obtaining counsel or otherwise protecting and managing our business interests.

We may disclose personal information in conjunction with or during talks for any merger, sale of corporate assets, financing, or purchase of all or part of our business by another firm.

Personal information is transferred between and among INTΞGRITY, its current and future parents, affiliates, subsidiaries, and other companies under common ownership and management.

We will only share your personal information with your permission or at your instruction.

We also disclose aggregated or anonymized data that cannot be used to identify you.

IMPLEMENTATIONS FROM THIRD PARTIES

Some of the content shown on our Services is not hosted by INTΞGRITY. Users are able to publish content hosted by a third party but embedded in our pages ("Embed"). When you interact with an Embed, it can send information to the hosting third party just as if you had visited the hosting third party's website directly. When you load an INTΞGRITY post page with a YouTube video Embed and view the video, for instance, YouTube collects information about your behavior, such as your IP address and how much of the video you watch. INTΞGRITY has no control over the information that third parties acquire via Embeds or what they do with it. This Privacy Statement does not apply to data gathered via Embeds. Before interacting with the Embed, it is recommended that you review the privacy policy of the third party hosting the Embed, which governs any information the Embed gathers.

INFORMATION TRANSFER TO THE UNITED STATES AND OTHER NATIONS

INTΞGRITY’s headquarters are located in the United States, and we have operations and service suppliers in other nations. Therefore, we and our service providers may transmit, store, or access your personal information in jurisdictions that may not provide a similar degree of data protection to your home jurisdiction. For instance, we transfer personal data to Amazon Web Services, one of our service providers that processes personal information on our behalf in numerous data centers throughout the world, including those indicated above. We shall take measures to guarantee that your personal information is adequately protected in the jurisdictions where it is processed.

YOUR SETTINGS

Account Specifics

You can access, modify, delete, and export your account information at any time by login into the Services and visiting the Settings page. Please be aware that if you delete your account, we may preserve certain information on you as needed by law or for our legitimate business purposes.

Cookies

The majority of web browsers accept cookies by default. You can often configure your browser to delete or refuse cookies if you wish. Please be aware that removing or rejecting cookies may impact the accessibility and performance of our services.

Communications

You may opt out of getting certain messages from us, such as digests, newsletters, and activity notifications, by following the instructions contained within those communications or by visiting the Settings page of your account. Even if you opt out, we may still send you emails regarding your account or our ongoing business relationships.

Mobile Push Notifications

We may send push notifications to your mobile device with your permission. You can cancel these messages at any time by modifying your mobile device's notification settings.

YOUR CALIFORNIA PRIVACY RIGHTS

The California Consumer Privacy Act, or "CCPA" (Cal. Civ. Code 1798.100 et seq. ), grants California residents some rights regarding their personal data. If you are a California resident, you are subject to this clause.

We have collected the following categories of personal information over the past year: identifiers, commercial information, internet or other electronic network activity information, and conclusions. Please refer to the section titled "Collection of Information" for specifics regarding the data points we gather and the sorts of sources from which we acquire them. We collect personal information for the business and marketing purposes outlined in the section on Use of Information. In the past 12 months, we have shared the following types of personal information to the following groups of recipients for business purposes:

Category of Personal Information: Identifiers
Categories of Recipients: Analytics Providers, Communication Providers, Custom Service Providers, Fraud Prevention and Security Providers, Infrastructure Providers, Marketing Providers, Payment Processors

Category of Personal Information: Commercial Information
Categories of Recipients: Analytics Providers, Infrastructure Providers, Payment Processors

Category of Personal Information: Internet or Other Electronic Network Activity Information
Categories of Recipients: Analytics Providers, Infrastructure Providers

Category of Personal Information: Inferences
Categories of Recipients: Analytics Providers, Infrastructure Providers

INTΞGRITY does not sell personally identifiable information.

You have the right, subject to certain limitations: (1) to request more information about the categories and specific pieces of personal information we collect, use, and disclose about you; (2) to request the deletion of your personal information; (3) to opt out of any future sales of your personal information; and (4) to not be discriminated against for exercising these rights. You may submit these requests by email to hello@int3grity.com. We shall not treat you differently if you exercise your rights under the CCPA.

If we receive your request from an authorized agent, we may request proof that you have granted the agent a valid power of attorney or that the agent otherwise possesses valid written authorization to submit requests on your behalf. This may involve requiring identity verification. Please contact us if you are an authorized agent wishing to make a request.

ADDITIONAL DISCLOSURES FOR INDIVIDUALS IN EUROPE

This section applies to you if you are based in the European Economic Area ("EEA"), the United Kingdom, or Switzerland and have specific rights and safeguards regarding the processing of your personal data under relevant law.

Legal Justification for Processing

We will process your personal information based on the following legal grounds:

To fulfill our obligations under our agreement with you (e.g., providing the products and services you requested).

When we have a legitimate interest in processing your personal information to operate our business or to safeguard our legitimate interests, we will do so (e.g., to provide, maintain, and improve our products and services, conduct data analytics, and communicate with you).

To meet our legal responsibilities (e.g., to maintain a record of your consents and track those who have opted out of non-administrative communications).

If we have your permission to do so (e.g., when you opt in to receive non-administrative communications from us). When consent is the legal basis for our processing of your personal information, you may at any time withdraw your consent.

Data Retention

We retain the personal information associated with your account so long as your account is active. If you close your account, your account information will be deleted within 14 days. We retain other personal data for as long as is required to fulfill the objectives for which it was obtained and for other legitimate business purposes, such as to meet our legal, regulatory, or other compliance responsibilities.

Data Access Requests

You have the right to request access to the personal data we hold on you and to get your data in a portable format, to request that your personal data be rectified or erased, and to object to or request that we restrict particular processing, subject to certain limitations. To assert your legal rights:

If you sign up for an INTΞGRITY account, you can request an export of your personal information at any time via the Settings website, or by visiting Settings and selecting Account from inside our app.

You can edit the information linked with your account on the Settings website, or by navigating to Settings and then Account in our app, and the Customize Your Interests page.

You may withdraw consent at any time by deleting your account via the Settings page, or by visiting Settings and then selecting Account within our app (except to the extent INTΞGRITY is prevented by law from deleting your information).

You may object to the use of your personal information at any time by contacting hello@int3grity.com.

Questions or Complaints

If we are unable to settle your concern over our processing of personal data, you have the right to file a complaint with the Data Protection Authority in your country. The links below provide access to the contact information for your Data Protection Authority.

For people in the EEA, please visit https://edpb.europa.eu/about-edpb/board/members en.

For persons in the United Kingdom, please visit https://ico.org.uk/global/contact-us.

For people in Switzerland: https://www.edoeb.admin.ch/edoeb/en/home/the-fdpic/contact.html

CONTACT US

Please contact us at hello@int3grity.com if you have any queries regarding this Privacy Statement.

Laura Sanders

Laura Sanders

3 years ago

Xenobots, tiny living machines, can duplicate themselves.

Strange and complex behavior of frog cell blobs


A xenobot “parent,” shaped like a hungry Pac-Man (shown in red false color), created an “offspring” xenobot (green sphere) by gathering loose frog cells in its opening.

Tiny “living machines” made of frog cells can make copies of themselves. This newly discovered renewal mechanism may help create self-renewing biological machines.

According to Kirstin Petersen, an electrical and computer engineer at Cornell University who studies groups of robots, “this is an extremely exciting breakthrough.” She says self-replicating robots are a big step toward human-free systems.

Researchers described the behavior of xenobots earlier this year (SN: 3/31/21). Small clumps of skin stem cells from frog embryos knitted themselves into small spheres and started moving. Cilia, or cellular extensions, powered the xenobots around their lab dishes.

The findings are published in the Proceedings of the National Academy of Sciences on Dec. 7. The xenobots can gather loose frog cells into spheres, which then form xenobots.
The researchers call this type of movement-induced reproduction kinematic self-replication. The study's coauthor, Douglas Blackiston of Tufts University in Medford, Massachusetts, and Harvard University, says this is typical. For example, sexual reproduction requires parental sperm and egg cells. Sometimes cells split or budded off from a parent.

“This is unique,” Blackiston says. These xenobots “find loose parts in the environment and cobble them together.” This second generation of xenobots can move like their parents, Blackiston says.
The researchers discovered that spheroid xenobots could only produce one more generation before dying out. The original xenobots' shape was predicted by an artificial intelligence program, allowing for four generations of replication.

A C shape, like an openmouthed Pac-Man, was predicted to be a more efficient progenitor. When improved xenobots were let loose in a dish, they began scooping up loose cells into their gaping “mouths,” forming more sphere-shaped bots (see image below). As many as 50 cells clumped together in the opening of a parent to form a mobile offspring. A xenobot is made up of 4,000–6,000 frog cells.

Petersen likes the Xenobots' small size. “The fact that they were able to do this at such a small scale just makes it even better,” she says. Miniature xenobots could sculpt tissues for implantation or deliver therapeutics inside the body.

Beyond the xenobots' potential jobs, the research advances an important science, says study coauthor and Tufts developmental biologist Michael Levin. The science of anticipating and controlling the outcomes of complex systems, he says.

“No one could have predicted this,” Levin says. “They regularly surprise us.” Researchers can use xenobots to test the unexpected. “This is about advancing the science of being less surprised,” Levin says.