Bartek Struzinski

My peak SF experience: shipped a $100M credit line payment processor today, issued a real card, and tested it on a chicken sandwich. Then took a Waymo home. Here’s me verifying the ledger at the table :) nothing like swiping a card running on your own code.

@ky__zo pls don’t complain about sf bathrooms, we have running water, usually potable too!

my new airbnb is equipped with an infrared lamp at the ceiling, emitting warm air directly to my bathroom never seen this before, chatgpt says it’s good for warming up after the shower and drying the bathroom really cool and also super refreshing after SF quality 😂

We raised $15m to build the ASICs-first inference cloud. We're betting big on alternatives to GPUs, and the result is that we are already 5-8x faster on most models. Read more about General Compute on Tech Crunch! @FPuklowski @fastinference techcrunch.com/2026/05/28/has…

@GoodisonJason @amaankahmad @FPuklowski @fastinference Let’s go Jason! Huge congrats to the team👏👏

@fchollet Yes, and to think about it even more, i rewatched the proximo-maximus scene from gladiator. Twice.

Did you think about the Roman empire today?

@yacineMTB They don’t know what per aspera ad astra means

Wrong. Being allowed to fail as spectacularly is an achievement that engineers should be proud of. The failure itself is a success that should be celebrated

‘per aspera ad astra’ played out in real time last night. the aspera was a fireball on a launchpad, the astra is still the goal.

@Alaska0420 @blueorigin Perhaps, but going through things like this with is exactly what made Elon who he is. In his own words - failure is irrelevant until it’s catastrophic.

@blueorigin Not everyone can be Elon Musk.

We experienced an anomaly during today's hotfire test. All personnel have been accounted for. We will provide updates as we learn more.

@dflieb @ycombinator So why encourage them to give away 2M USD worth of equity for tokens, if the bottleneck is figuring out what exactly to build?

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.

@GovNuclear Cherenkov radiation is so beautiful! Looks like the arc reactor!

WATCH: It's not every day you get to see a test reactor pulse!

@ryanndngg Using fake @TechCrunch , @YahooFinance , and @verge articles with real journalists’ names is fabricating press coverage and a bad look.

It’s only delusional until you’re standing in the exact future you once visualized. 8 months ago, I decided to become a founder. No credentials. No connections. No safety net. Just one question echoing in my mind: Why not be insanely delusional and optimistic? I’ve learned that life starts bending in your favor the moment you decide everything you want is already yours. You’re simply on your way to collect it. Success comes last. Belief comes first. Always. Every single day that passes, you’re not just getting older. You’re getting closer. To nothing. To something. Or to everything. So become obsessed. Obsessed with the truth that your potential is endless and your ability to grow is infinite. You can become anything you want. The only real question is: Are you willing to believe it before you see it?

@johnhcook @geekwire Saw it once sailing around Mallorca. It usually travels with The Wingman, a support vessel half the size that houses the crew and stores toys such as jet skis, smaller boats, and a helicopter. At the time they’d just travelled from Panama to Spain

Photos: Mark Zuckerberg’s superyacht arrives in Seattle just as Meta discloses 1,400 local job cuts geekwire.com/2026/photos-ma… via @GeekWire

What’s even more interesting is that the world hasn’t collapsed. You’d think it had to, given the tools stolen, yet it hasn’t. Some geopolitical shadow forces keep holding it together.

@eliana_jordan @ycombinator Please build it and let me know when you’re testing the product, would love to be an early user. This is a wonderful idea!

applied to @ycombinator with Be Underwater meanwhile yc applications: “ex-google engineer building another ai wrapper” me: scuba instructor who learned to code to build the airbnb for scuba diving yc changed the game for airbnb… maybe it can change mine too

The Last of Us kitchen edition

@karpathy Avengers Assemble!

Personal update: I've joined Anthropic. I think the next few years at the frontier of LLMs will be especially formative. I am very excited to join the team here and get back to R&D. I remain deeply passionate about education and plan to resume my work on it in time.

@StanSzymanowicz @JonathonLuiten Beautiful!

We made an interactive client-server viewer for LagerNVS with @JonathonLuiten! You can now interactively explore scenes from just a photo capture - no optimization, no 3D Gaussians, just load your images, run the model on a cloud GPU and stream the renders to your local browser. Check out the video below for some spaces I recently captured in Oxford, London and beyond!

1.36 billion tokens spent today. What a time to build.

@_Shark_byte I think for most startups the cost of finding a vulnerability is in low double digits dollars now. Claude Code running on Kali Linux, with the right harness/skills around it, turns out to be a very good pentester!

its scarily easy to do this for many YC companies of the 5 or so I was able to get the full DBs for last summer, it only took me 5-10min once you know what to look for none of the startups had a security contact, which meant reaching out to the founders and praying many were soc2 certified, closing big deals etc i will say, of those who responded, they were very thankful and fixed it asap (i never did get or ask for a bounty tho) @ycombinator I've reached out to yall before, but do consider at least having a contact email for situations like this

@randgroup tbh everybody is talking about it :)

Poland in 1990: poorer than Iraq Poland in 2030: catching the UK Why none is talking about this?

@andrewdboersma @var_epsilon Separate issues - one’s disclosure, the other’s security. Both can be true.

@bartekstru @var_epsilon I mean, more irresponsible to be a VC backed finance startup and have everything exposed.

someone here is about to get their shit rocked 😹