확률 · the study of what almost happens

A coin is never just a coin.

hwaklyul is a quiet observatory for likelihood — for the soft hum between yes and no, the long thin tail of almost. Every figure on this page is generated, every distribution alive. Refresh and the universe rearranges.

0 trials this session
0 prior conviction
0 degrees of freedom

live normal — μ drifting

A field of maybes.

Two thousand particles obey small probabilities. Hover to apply a bias; release to let the field forget you.

Six faces, one truth over time.

The law of large numbers, observed in small batches. Roll once, roll a thousand — the histogram below softens into 1/6.

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Believe, then update.

A simple test, a noisy world. Move the sliders and watch posterior belief drift across the curve.

P(H) · P(E|H) P(H)·P(E|H) + P(¬H)·P(E|¬H) = 0.5328

A positive test still leaves room to wonder.

One step at a time, in any direction.

Twelve drunkards leave the origin. Their paths are honest — neither going somewhere nor staying put.

The quiet ledger of what could be.

  1. i

    Probability is humility, formalised.

    It is the polite admission that we will never have the whole story, and the discipline of acting anyway.

  2. ii

    A tail is not a mistake.

    The unlikely is not erroneous; it is rare. Designs that punish the tail eventually punish themselves.

  3. iii

    Updating is not betrayal.

    To revise a belief in light of evidence is the most honest thing a thinker can do. The world owes us no consistency.

  4. iv

    Small p, persistent observer.

    Given enough time, the improbable becomes routine. The patient watcher is paid in surprises.

A small chance, attended to, becomes a life.

— hwaklyul, an observatory of likelihood