Simply waiting for a break in the input before triggering (and thus not triggering at all when input is fast and complete) gives you a kind of autotune for all kinds of cases. I am not talking about a long pause, just a momentary hesitation. Even on a new computer a fast typist can sometimes get ahead of the display, and on a slow machine it isnt hard at all to do that. Once it's all caught up and hits an idle loop, you can worry about whether it might make sense to make a suggestion.
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