Just like you can look at a solitaire game and say “If I play this card, then I can move that card and play what’s under that card…” and so on, a computer can do the same thing but many many times in a row, even 52 times! If the computer gets to a point where all the cards are gone in its mind (and it can’t do that if cards are still unrevealed), then the autocomplete happens, otherwise it won’t!
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