[lesostep]

No reliably reachable subset is representative of humanity.

But I also want to argue against the range of understanding argument. Attention has a limit. Anyone who wants develop a deep understanding for any topic would do themselves a disfavor by trying to expand their range aimlessly.

We can't all know everything all at once, so we should just develop some common sense for the most important topics instead. Like "people generally good and against violence". We used to have that once, we can rebuild it now.