Juraj

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1.) It is always possible to store non financial data in Bitcoin. Pubkeys have to be stored and pubkeys can be jpegs. And there is no way to tell if they are jpegs. 2.) storing jpegs in pubkeys is expensive for anyone running a node. Since there is no way to tell it's a jpeg and since it can be possibly spent later, nodes have to store the outputs in a data structure called utxo set forever 3.) if there is a way to store the jpegs in a way that tells node runners "you don't need to keep this shit, it cannot be spent" and the sender pays the miners for it anyway, it's better to provide this options 4.) filters don't remove jpegs, they move jpegs to option 1 which is worse for everyone 5.) because of 1, there will always be jpegs in Bitcoin. 6.) because of consensus rules allowing mining of longer jpeg outputs, the filters won't do chicken shit. If someone wants to store a jpeg, they find the cheapest way to do it. Normally people put the tx to a shared mempool and miners mine whatever is most profitable from the mempool. But if nodes are stubborn and don't relay, and miners want to make money, they will make it possible for another way to submit a tx that will make their operation more profitable. As a result of these, you should be running Core v30 and block filteroors on social media to keep your sanity.

Ľudia sa ma často pýtajú, či viem hacknúť niekoho Facebook/Instagram/WhatsApp/... Prípadne či viem hackúť naspäť ukradnutý účet. Odpoveď je vždy rovnaká. Ak sa vás na toto pýtajú známi, lebo "robíte s počítačmi", kľudne im pošlite tento text. https://juraj.bednar.io/blog/2025/10/27/neviem-hacknut-niekoho-facebook-preco-vam-eticky-hacker-nepomoze/

I often get asked if I can hack someone's Facebook/WhatsApp/Instagram, or if I can figure out who someone is. No I can't. If you get asked the same question, send them this - link, text, I don't care. I hope you like the metaphor of a fisherman milking cows 😉 https://juraj.bednar.io/en/blog-en/2025/10/27/i-cant-hack-someones-facebook-why-an-ethical-hacker-wont-help-you/

The next hipster wave after third wave specialty coffee is here. It is sauna. New proper ways to do sauna ceremonies. Whisks and herbs. Different types of heating, wood. Sauna hats. Form factors. Tent saunas, container saunas. Podcasts in a sauna. Zone 2 training in a sauna. If I wanted a fiat asset, I would buy shares in companies making sauna gear. Top tier.

The easier it is to return a bought item, the more likely it is I will buy it The easier it is to close a business, the more likely I will start one The easier it is to fire someone, the more likely I will hire someone The easier it is to end a rental contract, the more likely I will rent The easier it is to exit, the more likely I will stay - Juraj Tsu, The Tao of Friction

An artefact from my project. Try it out. Standing, outside, speed 1X. https://youtu.be/_Q5Ri1Jl_fA ...or DeMu (links in the article). nostr:naddr1qvzqqqr4gupzppn8w3ed3th92h80dhqczelgej35h4x9f773xer95ns980elk2m0qq2hxt2ltph82e6nfyerwwzlfe4yk3fcwfjhwzr85dq

Na toto sa veľmi teším. Dušan Plichta organizuje v Prahe Biohacking Summit, 8. 11. Celkom husté mená zohnal, takže ak vás baví biohacking, tak dojdite. Kód na zľavu: Biohacker10 https://biohackingsummit.cz/program/

🎙️ episode of Option Plus Podcast drop: Running for the digital hills What do the modern cryptoanarchists and the hill tribes of Zomia (area the size of Europe in southeast Asia) have in common? They have evolved strategies to become state-repelling - not only avoiding the state, but making the state avoid them. What are the similarities of their strategies to cryptoanarchy? Can we learn something from them? And can they become cryptoanarchists themselves, since the digital dystopia landscape in Asia is taking over? https://hackyourself.io/2025/10/07/running-for-the-digital-hills/

My life motto Seen at dark prague