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Justin Kan
@justinkan
From the bottom to the top & back again. Co-founded @twitch, now working on making videos, @rye
2.3K Following    572.7K Followers
Zipline is the future of all instant delivery. Everyone else is just catching up to this fact.
Big news today. Science's PRIMA visual prosthesis, our retinal implant for macular degeneration, has received its CE mark, which means marketing approval in Europe. This is a huge milestone to begin to have a device like this commercially available to regular patients. 1/
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Today marks the European launch of PRIMA, the first and only treatment to be commercially available that restores functional central vision to patients with geographic atrophy caused by dry age-related macular degeneration, a leading cause of blindness. The first European commercial implant of PRIMA is expected soon.
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The future of bio is powered by faster data Introducing the Medra AI Experimentalist: an agent that turns goals into experimental designs, learns from every result, and develops the next assay Excited to collaborate with @DARPA and @NVIDIAHealth on the future of science
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Go touch grass
Are we the woolly mammoths? Progress ep06 is live with @justinkan, co-founder of Twitch. Mammoths built the grassland they lived on, then changed it too fast to survive. Justin thinks we might be next. We talk AI job loss, his bet on a Mamdani-style president in 2028, and what selling Twitch for $970M didn't fix.
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In this podcast with @ashleevance, @maxhodak_ goes through the Science master plan...
This was an unhinged conversation in the best of ways.
Are we the woolly mammoths? Progress ep06 is live with @justinkan, co-founder of Twitch. Mammoths built the grassland they lived on, then changed it too fast to survive. Justin thinks we might be next. We talk AI job loss, his bet on a Mamdani-style president in 2028, and what selling Twitch for $970M didn't fix.
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I had a great time chatting with Derek about happiness and why extrinsic success will never make you happy over the long term. Of course, most people have to figure that out themselves, like I did :)
This week on @Divotdotorg I speak with one of Silicon Valley's most thoughtful people @justinkan. We talked about why money and fame don't create happiness, why Justin isn't chasing the AI gold rush, and the habits that rewired his brain. 01:40 — Justin Kan’s Tattoo About Gratitude 02:46 — Why Success Still Creates Comparison 03:36 — Why Money and Fame Don’t Create Happiness 06:55 — Why Achievement Only Feels Good for a Moment 10:51 — The Habit That Rewired Justin’s Brain 16:39 — AI, Mental Health, and Social Media 18:10 — Why Justin Isn’t Chasing the AI Gold Rush 21:49 — The Founder Trait Justin Looks For Most 23:19 — Why Justin Invested $8 Million After a Cold Plunge 26:20 — Why You Shouldn’t Chase the AI Crowd 26:44 — The Next Big Frontier After AI
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Finally got agent pilled and set up Hermes agent on Opus, for search, connected to whatsapp, told it to install Gstack on itself. Feels like I'm playing Productivity(TM): The Video Game. I'm addicted.
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@AOC The idea that all billionaires got their money by exploiting peopl doesn't hold up to any scrutiny. JK Rowling wrote books about cheeky wizards. I invented a better way to make virtual reality headsets and games to play on them. We just made things people wanted.
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Everyone who cares about climate should understand this. Texas, with no pro-climate policies, has blown passed California in clean energy. In large part because Texas has less red tape and makes it easier to build.
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Two of my favorite people in conversation...
Will Reddit be the last human stronghold? Progress ep03 is live with Steve Huffman, founder and CEO of @Reddit We discuss why the future looks a lot like the past, why death might actually be good design, and why scientists may one day have to apologize to the hippies. Timestamps 00:00 Introduction 01:30 Steve's weirdest idea: we should all die and be forgotten 04:37 Scientists owe the hippies an apology 05:35 Einstein sounds like a Buddhist monk 08:04 Reddit as an empathy machine 09:23 What Facebook got right, then abandoned 10:30 Cities are the only organism that scales superlinearly 12:25 Diagnosing inefficient institutions 13:35 Institutions need to die too 17:07 The policy mistake behind housing, college debt, and healthcare 18:21 America's doctor cap vs. Asia's approach 20:43 Fatherhood and the long view 22:12 Will Steve's kids have jobs? 23:38 Steve's case for Universal Basic Income 27:23 Saying please and thank you to ChatGPT 29:00 Vibe-coding a home automation bridge in two days 30:22 Scott's guilt about jailbreaking Claude
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New kind of mailbox is rapidly rolling out for businesses. Enables teleportation-like delivery to any home. Drone delivery is now universal 🌎
Editframe is how agents are going to create and edit video for you. Agents will allow ten times as many people to create, and video is the largest creative market…
Today, @editframe emerges from stealth. Agents need video. Editframe Agent Skills: npm create @editframe@latest Just prompt Claude Code, Cursor, or Codex and get a working video or a full interactive GUI. This video was created just by prompting 👇
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Merchant fraud systems can't tell the difference between a scalper bot and a customer's AI agent. The agents that make it through are the ones carrying verified credentials. We're partnering with @trySkyfire. Their Know Your Agent (KYA) protocol is now the identity layer underneath Rye's Universal Checkout API. One SDK. Verified identity at the merchant edge. Both layers in production today.
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Mike has lead connection exercises I’ve been a part of and it’s pure magic. Can’t wait for his cookbook.
I'm writing a cookbook for connection and launching the first recipes → For 15+ years I've been the friend people texted at 11 pm before a big life thing. "I'm walking into my first board meeting tomorrow, how do we build trust in the first 10 minutes?" "I'm designing my 35th, help me make it more than a bar night." "I'm going on a trip with my parents, how do we actually connect?" "We're designing our intercultural wedding, how do we make it magical and not formulaic?" 🍽️ They each wanted a "recipe" for how to design an experience. I'm sharing some of the meaningful ones that helped them (ingredients, steps, and a little science explaining why it works). 👨‍👩‍👧 What I learned is that people wanted to connect with the most important people in their lives, but were stuck. Holidays with parents, date night with their partner, a cousin's trip, a team offsite, a birthday, a baby shower. We default to the same script and wonder why the night felt okay but not great. It's usually not a lack of love in the room. It is a lack of inspiration about how. 🍚 In the same way you pull up a food recipe when you want to cook something great for someone, I believe we need inspiration from recipes for the experiences we host. Magical recipes to teach people how to host, facilitate, and create the "vibes". I will share a new recipe every Monday ( Comment 👇: What recipes would you want to read? Who do you want to deepen connection with in your life?
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Welcome to the scientific revolution. 100s of robots. Zero coffee breaks. America’s largest autonomous lab, open today.
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Your agent can buy things now — Amazon & Shopify.
Had so much fun reminiscing about the old days of YC with @jesslivingston and Carolynn Levy!
In the latest Social Radars we talk to Justin Kan, who has spent his whole adult life around startups. He's seen it all, and because he's so candid, he tells it all too. We had fun talking to him, so this interview should be fun to listen to.
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