You open a thread about something you've been reading, thinking, or wondering about. Other students reply with what they think. That's the whole idea.

No feed, no upvotes, no infinite scroll. Just topics and replies, kept around long enough to actually finish a thought.

I started this in 2026, in Leuven, when I was nineteen. I wanted somewhere I'd actually want to write — a room where you can post a real idea and somebody serious might answer.

We're beginning at KU Leuven and slowly opening to other European universities: Amsterdam, Frankfurt, London, and more. To join, you need a current university email — student, faculty, or alumni. Pick whatever handle you like; nobody needs your real name.

Open a thread under any of these:

The site also hosts the full Cryptography Mailing List archive (1992–2026) — six thousand old discussions, including the one where Bitcoin was first announced. It's there because it's good reading, and because it shows the kind of conversation we'd like to have here.