"Advice given to any young person: "I can't tell you what to do. I can tell who what I've done. I've instinctively never gotten into a zero-sum busi… - Nassim Nicholas Taleb

A GOLDEN RULE in ETHICS Take a moment to figure out whether you'd rather be praiseworthy but not praised, or praised but not praiseworthy.

History is opaque. You see what comes out, not the script that produces events, [...] The generator of historical events is different from the events themselves, much as the minds of the gods cannot be read just by witnessing their deeds.

Economies of scale are not compatible with reduced survival in SP500, or extinction of large animals. Large is fragile.