> In game theory, a sequential game has perfect information if each player, when making any decision, is perfectly informed of all the events that have previously occurred, including the "initialization event" of the game (e.g. the starting hands of each player in a card game)

https://en.m.wikipedia.org/wiki/Perfect_information

I don’t disagree with your point about our capability to use that information, but that’s what the game is about. If you have perfect information and perfect capability to predict what a move will mean in the future, what’s the point of playing at all? Anyway just wanted to point out exactly what the comment you replied to means by perfect information.

Parent is using "perfect information" as a particular term-of-art in economics and game theory: https://en.wikipedia.org/wiki/Perfect_information

It's not perfect knowledge in the sense of Laplace's Demon where future values will be predicted with determinism. https://en.wikipedia.org/wiki/Laplace%27s_demon