Martin Vrbovčan

I'm a student at FER, Croatia. Interested in maths, biology, and AI. It's fascinating how optimising over combinations of shape production (proteins) led to intelligence which we are still figuring out.

Currently: reading my favourite writers Henrik Karlsson, Sasha Chapin, Celeste, Scott Alexander. Working on a quasi-startup. Trying to wrap intuitions around RNA folding.

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2026-03-30 Rebuilt personal site from scratch. Libre Caslon is my favorite font. Rabbit hole w Claude on stomach acid, RuBisCO, Purple Earth hypothesis. Life works on a basis of ~50 molecules (nucleic & amino acids, ATP, sugars, essential lipids), that enzymes can work with & modify really well. Attended an AI Business process automation presentation by Plavi Tim, INA 2026-03-31 Coffee talk: what pharmacy does, emotional books to read & my fav writers. Stohastic processes; lots of questions about marginals and conditioning Attended a long and sprawling 6 hour student association voting sesh. 2026-04-01 Bash scripting fun! Stretching Claude code to do crosschecking from 50 PDFs and a spreadsheet, works! Hosted house party, with 40min "Why I like San Francisco & rationalism" presentation. - Topics like liking unorthodox things, how people dream there, optimize, worldmodels, you can just do things etc. 2026-04-02 Early trials into a custom trading/hedge fund design, trading learning Was generally quite shocked about how little energy or will I had to do things - Probably lack of sleep, bad start of day, etc. - Music is my main productivity poison Found out & told collegue I didn't do something I promised 3 weeks ago; as a consequence a gaint international competition event has to be delayed by [2 weeks, up to 2 months]. - Feel really bad about it :(; but I've had a nonconsistency failure mode I still haven't gotten rid of. (+37 words) read more 2026-04-03 Very much underslept because of student org meeting yesterday. - Was sluggish throught the whole day - Too much time on substack (although excellent writing) Didn't do much except shuttling papers to an NPO office :/ Fixing mistake from yesterday (while tired...) 2026-04-04 Another generally lazy day: too much time watching films & Substack. Sending emails to fix my previous mistake still. Felt like everything after college was more surface level, like I was improving more until 19. - Realised I'm not actually playing *this game* right. I've fallen into the gifted trap. Grown complacent, not challenging myself, not strong enough of a work ethic. Drift under weak external structure. - Everyone around me feels like they're missing the ball, NPCs at college. Super easy exams. (+129 words) read more 2026-04-05 Easter! - Which means relatives visit, etc. Chilling with family. Chatted with amazing high school frien about life, socials... Lack of time. Agreed to keep in tuch much more! Am so happy because we reconnected more after so long. - Would be cool to go to San Francisco together before Switzerland in September. Celeste is an amazing writer. Rationalist music is really good ("You have not been a good user" album). Planned the legalty of quasi-startup, namely payment processing while students w no legal entity (+41 words) read more
2026-04-06 Setup Claude code to search for hackathons across Asia because a friend and I really wanna visit Singapore and Asia - found lots of cool things in America like Treehack, would be cool to give it a go Quote I can't stop thinking about: discipline is reduction. Structure is cutting off choices. - No choice means you're literally "locked in" - Obviously, cutting off superstimuli, unnecessary people & timewasters while keeping randomness would be the way to go. Did a buffer overflow exercise in ~6h, (+55 words) read more 2026-04-07 Amazing group chat sesh where I described my ideal future. - Living with friends, collective schooling agency institution, financing people I love, being surrounded by smart empathic people (our little "comune" hahah). - Also agency talks like becoming an Anthropic ambassador, etc., bringing SF to Zagreb via posters and cafe meetings. Pulled an allnighter to finish sending emails. - After 1h of sleep and feeling terrible the next 1h after waking, I felt amazing for the rest of the day. (?) (+47 words) read more 2026-04-08 Attended a kaggle "Clustering cup"; you get 512 dim data, cluster it, closest to ground truth wins! I didn't win, but it was a really fun! - Should have played more with normalisations, visualisation first. Like 2x of what I did. - Rapid iteration & exploration w AI. Built an auto Ryanir/Wizzair cheap flights tracker. Get cheap round trips (<60€) over next 45 days in inbox. Accounts for exams and calendar. Autoruns every mon and fri. - Lots of other similar tracker ideas. You can just do things! (+70 words) read more

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