5465 ¹ retweeted
This is how we can fit the most transactions inside a Bitcoin block 😤
The optimality of the packing for 11 squares has been formalized in lean thanks to Astra and Claude! Huge thanks to @ojoshe, @kleddamag, @wand_125, @guzhou0806, and @ctjlewis for aiding in the process.
Image credit: jlevy.github.io/squares/case…
1/n
5465 ¹ retweeted
A fun long-form conversation with my friend @mehranrowshan ranging freely over a number of topics of mutual interest including education, why I'm homeschooling my kids, why reading matters so much, why we both appreciate Dubai as a home base, why perspective is worth 80 IQ points, why we've all sacrificed our privacy for the utility of AI & what to do about it, and a bunch more!
Everything is pumping because degens have arrived in Bali
People feel good when they are in Bali
& when people feel good they bid coins
This is a 100% accurate thesis on why everything is up today.
Give thanks to the island of the gods
& to @CoinfestAsia 🫢✨
5465 ¹ retweeted
Imagine trying to hack someone and getting trapped in an 87-minute discussion about Bitcoin insurance first.
gained a ton of new insights working in bitcoin red team 🟥 that i wish i could share without vague posting. but this is what i got anon.
- we’re experiencing a massive collision between decades of human open source slop against 2 weeks of kimi k3 (not good)
- everything is broken, bitcoin is burning
- bitcoin is becoming stronger through this
- bitcoin is the obvious first target but the rest of the world will follow shortly
- sometimes old things need to burn so new things can grow on healthy soil
- humans should never code in c (just stop)
- lightning is complicated and is more broken than the average (sorry)
- verification is free. we used to complain about slop PRs. then about slop security audits. if you can’t handle the information overload, stop complaining and use AI to sort through it.
- those projects that started AI audits months ago are in a completely different position than those who didn’t
- projects need their own AI audit pipeline going into the future
- the burden for a developer to keep software safe and secure is pretty stressful and not for everyone. it has become a lot more stressful now.
- unmaintained projects are most probably broken, don’t rely on them. i’d rather one-shot it myself with a modern AI
- multiple concurrent, diverse human approaches have proven to be the best vulnerability search method
- external red teaming will probably have to continue forever
- we’ve basically completed a basic scan of virtually the entirety of bitcoin open source. the low hanging fruit is done.
- we’ve reported a ton of real critical and high vulnerabilities. project maintainers across the board have validated our findings.
- response speed is very different across projects and shows how healthy each project is. i recommend acting fast these days.
- red team etiquette matters. if you don’t disclose responsibly, boast on twitter about your findings on a particular project, or make indications about the nature of particular findings, you’ve disqualified yourself as a serious security researcher. trust is the most important factor in this game. if you lose it, it’s very hard to win it back.
- did i mention that humans should not code in c?
love you all.
5465 ¹ retweeted
This was a pretty special evening by the cliffside.
150 of you turned up.. members, friends of members & strategic allies of ours.
A night for depth, dancing & delicious memories.
Many seeds were planted & there will be many fruits to enjoy in the coming weeks.
& to those who know..?
See you at our Summit August 20-23
"You got lucky, you bought Bitcoin cheap."
There's no luck in it. Nobody caught the bottom. They just stopped waiting for a better price and bought the one in front of them.
Many people treat buying Bitcoin like a moment to time perfectly. So they wait, and wait, and the moment never sends a calendar invite.
The perfect entry doesn't exist. Starting does.
If you've been putting it off, July's the month to stop. Every fee a new Bitwala user pays comes back in Bitcoin, refunded early August. Trades, card, the lot.
Skip the wait. Start before 31 July.
One week into full MiCA enforcement, crypto platforms in the EU now come in two kinds: regulated, or leaving.
Bitwala is MiCA-compliant. Wallet, Trade and Card, one regulated setup, valid across 30 EEA countries.
Crypto rebuilt right, paperwork included.
How we're regulated, in detail: bitwala.com/blog/bitwala-is-…
We started in Berlin. Then it fell apart, and the same team rebuilt the company from five people and took it across Europe.
For three years we were live almost everywhere we operate, absent from the one country that started it all.
This week that changed.
Bitwala is open in Germany, the last of the 30 EEA countries in our regulated footprint. The German-language app is on the way.
Willkommen zurück: bitwala.com/blog/bitwala-is-…
Germany's about to scrap tax-free Bitcoin holding. During a bear market.
Read the room.
Right now, the 1-year Haltefrist means you pay zero tax on BTC held longer than 12 months. There are active proposals to kill it, with a draft law possible as early as July.
prohaltefrist.de is a community initiative from the German crypto scene fighting to keep it.
Bundestag petition filed. 30k signatures needed, and you don't need to be German to sign.
Bookmark this. Sign it when it goes live.
5465 ¹ retweeted
Someone invites your ex and your wife to the same party.
@Starknet and @Zcash are hosting a privacy event and rave together in Berlin next week.
June 19th, The Blockspäti Berlin.
PEER TO PEER: JUNE 19 BERLIN 🇩🇪
The bear market is squeezing. What do you do when selling your Bitcoin means a loss, a tax bill, or both?
Bitwala x Boro.today x @Greenminingdao at The Blockspäti hosted by @joinwebzero & @Zcash during @BerBlockWeek
One afternoon on L-L-P: Liquidity, Lending, and Profitability. How to borrow against your BTC instead of selling it, and how miners keep the lights on when price won't cooperate.
Should you ever sell your Bitcoin? You vote, we argue, and we get to change your mind in public.
Dried "Bitcoin Mango."
Free Visa Card if you show your Bitwala account.
📍 MENA Berlin, Skalitzer Str. 114, Berlin-Kreuzberg
📅 Friday 19 June 2026, 14:00–16:30
🎟️ luma.com/the-3hec
Bitcoin is a $1.9 trillion asset, and less than 0.5% of it participates in DeFi.
99% sits economically idle, and not because people don't want to use it, but because public finance has limits.
STRK20s fix that.
Privacy that works for crypto.
Have the H2C and a metric ton of accessories in my cart, willing to pull the trigger if you opensource your shit, @BambulabGlobal
Josef Prusa of Prusa Research has raised serious concerns about Bambu Lab’s Bambu Studio slicer software.
The program, a fork of the open-source PrusaSlicer, incorporates a closed-source networking plugin that Prusa describes as an unauditable “black box” downloaded from a CDN and capable of remote replacement.
Prusa says this is dangerous because Chinese laws require companies to help their intelligence agencies and share encryption keys, and slicers handle sensitive 3D design files used in research labs, universities, and defense work.
He also claims that Bambu Lab is breaking the open-source license rules by adding this closed part.
These are some of our fees. What if they just... disappeared?
Fee-Free Month.
Every fee you pay in May is a chance to win it back in Bitcoin.
New users who verify and use the app are in!
💸 downloadapp.bitwala.com
T&Cs apply: bitwala.com/fee-free-month




























