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There is one simple hard fact: shorter code is faster to read and understand, period. If someone doesn't understand what the result of `o != Unknown` is then they should probably go back and read more about programming. Sorry to sound a bit condescending.

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I would’ve written a shorter letter if I had more time. I’ve also noticed people don’t want to think through Boolean logic enough to write things legibly. Or the other extreme is way too many Boolean operators on a line where it gets very hard to parse. Even worse when there are multiple cases like that in one function

That's clearly not true, and one of the primary design choices Go makes. It trades concise code for more readable code.

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