Yudkowsky makes this distinction. Stockfish is not always correct: it can be beaten by next year’s Stockfish for example. In some sense it is making mistakes all the time. It’s just that those mistakes are not accessible to us humans. It is operating in a much higher plane of understanding compared to us.
A “mistake” to stockfish looks like: I searched 30 ply down but my opponent searched 35 ply down and found a superior sequence of moves.
For stockfish to make the kinds of chess mistakes that humans make, it would similar to if I failed to calculate 123+123=246. It’s not that 123+123 is particularly easy on the grand scale of intelligence: animals cannot do it. But it’s completely inconceivable that I could make that kind of mistake.
A “mistake” to stockfish looks like: I searched 30 ply down but my opponent searched 35 ply down and found a superior sequence of moves.
For stockfish to make the kinds of chess mistakes that humans make, it would similar to if I failed to calculate 123+123=246. It’s not that 123+123 is particularly easy on the grand scale of intelligence: animals cannot do it. But it’s completely inconceivable that I could make that kind of mistake.