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I'd caution against randomly flying across cities. There's probably a very good reason why we don't naturally do that.

Just pointing out that this is a weak argument.

You might wait for a few flights over an empty field first though.

Many people were injured or killed trying to invent flying machines until we finally got it right.

Many many people have already died of brains issues. On the order of 5% of everyone who has lived ever. Esp in the last 2 centuries which from some counts is more than ever lived before.

Your simile would be apt if people not getting to the other side of the city were dying or having greatly decreased quality of life (alzheimers, stroke).

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