Conversation

I used to rely on the argument "your right to speak does not mean I have an obligation to listen' as my basic response to free speech++ absolutists, but it is curiously ineffective. I think human brains haven't yet learned that tech can separate listening from speaking.
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Ears can't be shut like eyes can. In our notional paleo environment where nobody had wheels or megaphones, the only way you could deny someone a right speech was to kill them. Otherwise they'd just follow you around continuing to talk.