🥊 WELCOME TO FIGHTHAVEN 🧠

Where Theory Meets Practice (Somewhere Near Berkeley)

DECISION THEORY? HAVE YOU CONSIDERED DECISION PRACTICE!?

"Recursive self-improvement is recursive masturbation."

You are not your rationalist blog. You are not your karma score. You are not your prediction track record. You're not your GPT embeddings. You're not the copies of you in other branches of the multiverse who actually exercise.

The first rule of Fighthaven is: you must actually practice.
The second rule of Fighthaven is: you MUST actually practice.
The third rule of Fighthaven is: if someone starts explaining quines during sparring, the fight is over.

We're just some nerds who think rationality could use more punching. We've all read the sequences. We've all posted on LessWrong. We've all optimized our Anki decks. Now it's time to optimize these hands.

This is your empiricism on concrete. This is your epistemology in the ring. This is your phenomenological experience of getting punched in the face while trying to explain why actually, from a technical perspective, you already won this fight in theory.

Step into the ring where:

Our Virtues

TSUYOKU NARITAI (BECOMING STRONGER)

We're not here to converge on local maxima. We're here to:

TOUCHING GRASS

I want you to hit me as hard as reality does (which is to say, with complete indifference to your clever arguments):

MAKING CONTACT WITH REALITY

Here's where:

Our Practice Grounds

BOXING

Put your theories to the test:

CHESS BOXING

The ultimate synthesis of theory and practice:

NEWCOMB'S BOXING

The ultimate decision theory experiment:

COMING SOON

Join Us in Reality

Perfect for:

Current Status:

⚠️ WARNING: Side effects may include: realizing how many of your theories don't survive contact with reality, developing actual capabilities, uncontrollable urges to ask "but have you practiced it?" in philosophy discussions, occasional bruises, and a drastically reduced tolerance for people who start sentences with "well, technically..."