Joined March 2012
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Having done YC before, it's amazing to be back. The energy is the same 14 years (!!) on. Also, the quality of the folks I met was just as a high, if not more. So many have done a ton already, some are early. All are moving super fast. Crazy achievement by the YC team and @garrytan. My personal takeaways from the kick off of P26: - the vibe/how folks/users feel matters - prolly even more for hardware - what is the smallest thing one can actually ship rn - watch out for hero-mode; are we solving the real problem, or the easy one - strong cofounder bond is key, and the easiest way to fail, even vs funding - building a pro sports team, not family - post more to LinkedIn, as spaced rep is a thing, and starts a brand - create a tribe. convert people. if founders don't no one will: but build one tribe, not more
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How to be a good investor: Don't play games. Be transparent. Prepare before the meeting. Make your decision quickly. Give a clear yes/no. Don't be an asshole. Realize that there is a good chance you are wrong. Understand that the founders are dedicating years of their life to this. Huge bonus points if you are a fellow founder who understands what it's like to build a startup.
I was once pitching in a board room at a top 3 VC firm for a $15M Series A. 12 people in the meeting. One of the GPs fully fell asleep. Out cold for 30 minutes. Nobody acknowledged it. Everyone just kept going. I kept presenting my Series A slides to an unconscious man in a Herman Miller chair and somehow that was considered normal. That's venture capital. You might fly across the country to perform for people who may or may not be conscious. It's a dance. And sometimes you lead and sometimes you follow and sometimes your partner is unconscious. If you're raising right now, just know: every founder has a story like this. The process is weird. The power dynamic is weird. You're not crazy for thinking it's weird. No one talks about it because they want to continue raising. But I'm happy to stick my neck out there. It is weird.
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This is the definition of must-have for the future drone war.
.@9Mothers is making AI mission systems for the DoW. Their first product - EDDA - is a tiny robot that protects soldiers and critical assets from Group 1 suicide drones. They're building it small enough and cheap enough to put that protection on everything: every vehicle, every position, every asset. Congrats on the launch, @rhs, Roman, and Bogdan! ycombinator.com/launches/Qgn…
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.@9Mothers is making AI mission systems for the DoW. Their first product - EDDA - is a tiny robot that protects soldiers and critical assets from Group 1 suicide drones. They're building it small enough and cheap enough to put that protection on everything: every vehicle, every position, every asset. Congrats on the launch, @rhs, Roman, and Bogdan! ycombinator.com/launches/Qgn…
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Exactly right. The bottleneck has never been compute or capital. Its taste and judgment about what humans actually want. Infinite compute just makes the great founders faster and the confused ones more confused. x.com/dflieb/status/20601962…

Thought experiment: if every company suddenly had infinite free compute, what new products would emerge? My take: with very few exceptions, not much would change. The bottleneck is figuring out what people want, and it’s not so easy to apply compute to solve that.
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Lets go! We're expanding what we're doing, and also still hiring!
New site, new things! 9mothers.com
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"9 Mothers in the YC Spring 2026 batch is a counter-drone defense co for whom bar is zero, there is no viable close quarters defense otherwise! There's no chasm to cross for that."
Geoffrey Moore says startups die in the chasm because pragmatist buyers demand a "whole product." These folks won't tolerate gaps. They need references. They need the complete solution. The chasm is lethal because because the buyers won't buy without perfection. But Moore's model assumes there's an EXISTING solution the buyer is comparing you to. The whole framework assumes the buyer has a status quo they're comfortable with. When the *bar is zero*, when the alternative is literally "we die" or "we do this entirely by hand with 2,000 people" (Block's compliance team) or "we just don't have this capability at all"? The chasm doesn't exist for those. Buyers start acting like visionaries instead of skeptics, because they have to buy. The alternative doesn't exist. They'll tolerate a 60% solution, missing features, no references, because 60% of something beats 100% of nothing. The companies I get most excited about aren't disrupting incumbents. They're filling voids. 9 Mothers in the YC Spring 2026 batch is a counter-drone defense co for whom bar is zero, there is no viable close quarters defense otherwise! There's no chasm to cross for that. The practical implication for founders: if you're in a market where the bar is zero, stop worrying about whole product, stop worrying about crossing the chasm, stop worrying about pragmatist references. Ship the 60% solution. They're begging for it. If you're NOT in a bar-is-zero market (if there's an incumbent, a status quo, a "good enough") then Moore applies in full and you need the whole playbook (beachhead, bowling alley, whole product, the works). The question every founder should ask: is my customer's current alternative literally nothing? If yes, you're in a different game than the textbooks describe. Ship it in whatever form you have. You'll know. And it's a great place to be.
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BA 🙃
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Somehow this is their app, and it’s a webpage, that breaks instantly. It’s also constantly asks you to use the app…. 🙃
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We made the #1 spot here (yay sorting). Lets goooo!
500 founders. 1,500 nominations. 100 companies. The Black Flag 100 is back 🏴‍☠️ No VC votes. No fund picks. Just pirates chasing storms over certainty. The 2026 list 🧵🏴‍☠️
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There’s a lot of alpha in putting your ego aside by being willing to be cringe, willing to fail in public, willing to ask for what you want and face rejection, etc.
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bullish on the PM role quietly becoming the most important role in tech again when anyone can build, the person who decides WHAT to build becomes the bottleneck
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Great analysis of where things are going, and what's needed.
Replying to @ycombinator
Counter-Swarm Defense @bosmeny A Patriot missile costs $3 million. An FPV drone costs $500. All the cost advantage lies with the attackers, and the next wave isn't one drone, it's swarms. Drone defense is starting to look less like operating a weapon and more like running a real-time distributed system. We want to fund founders building the counter-swarm stack.
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Opus 4.7 is so much worse at stopping in autoresearch style setups it's almost unusable. Any tips here? What worked before, even with tweaks breaks every few hours now.
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I think @garrytan's GStack is cool.
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“ok this startup is cool but …” 1980: … what if IBM builds this? 1995 … what if Microsoft builds this? 2010 … what if Google builds this? Today … what if <huge AI lab> builds this? reality is, if founders listened to the “what if” pessimists we’d never have any startups or new products. That’s why they’re building and the pundits aren’t My observation: When these huge waves happen, these new markets are so damn big there will be tens of thousands of new viable companies, hundreds of unicorns, and a few iconic companies that become generational. The big cos play a role but can never compete with the glorious open market known as capitalism So for all the “what if” people - sit down, log off X for a bit, and let the founders do their thing. And let’s cheer them on when they do
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I do love QMD, but embedding is slow. Any one figured out making it faster? Different model? using api?
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Ugh.
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‼️ ZELENSKYY: For the first time in the war, an enemy position was captured entirely by ground robotic systems and drones - without any infantry. A robot entered the most dangerous zones instead of a soldier and took the positions. «The future is here, on the battlefield, and Ukraine is creating it. These are our ground robotic systems. For the first time in this war's history, an enemy position was taken exclusively by unmanned GRS platforms and drones. The occupiers surrendered, and this operation was completed without infantry involvement and without losses on our side. Ratel, Termite, Ardal, Lynx, Zmiy, Protector, Volya and other GRS completed over 22 000 missions at the front in just 3 months. In other words, over 22 000 times lives were saved. A robot went into the most dangerous zones instead of a soldier» - Zelenskyy’s address to the workers of Ukraine’s defense-industrial complex. April 13th, 2026.
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Was talking to friend at a major lab about what we do vs what they do when writing code with agents - aka how can I learn / be better things we're missing; 1) isolated environments agents can spin up / be in on demand 2) end to end simulation 3) inter agent comms #1 easy, #2 we have some, not e2e, so harder, #3 they just put them all in slack, lol... but then, if we have those, the overall agent planning is then the missing part. anyone doing this outside of a lab? tools to checkout, or just build?
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