[eru]

Determinism is interesting. It's mostly a question of 'deterministic in what context'.

Eg the rules of chess are written as if the players have free choice. Similarly, algorithms are often analysed as if the antagonist that provides the data has free choice (so we assume the worst case to be sure).

That's a very different non-determinism from assuming a probability distributions.

And different frames might be accurate depending on context. You might know what chess bot you are playing against and that chess bot might be a deterministic computer program, or might be a computer program that uses radioactive decay to randomise.

And as you suggested, free will is yet another kettle of fish.

[criddell]

> the rules of chess are written as if the players have free choice

How else could they be written?