> If you actually try to use a formal grammar to generate all possible parses for a sentence, you'll notice your brain filters out a lot of nonsensical but grammatically valid interpretations.
The stress of the words is different depending on PoS, unless you don't even try, there's little room for ambiguity. In writing, correcting the spelling error to fruit-flies solves the problem. The issue is real, but the example is naiv.
Indeed. Canonical example:
https://en.wikipedia.org/wiki/Time_flies_like_an_arrow;_frui...