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Define cool.

Someone who drinks the Koolaid or someone who doesn't ? ;-)

Define Koolaid :) For some people 'bad' means good, so take it as you will.

Well, it seems the expression is innacurate. Flavour-Aid was apparently what was used: https://www.forbes.com/sites/bruceweinstein/2018/03/29/two-great-reasons-to-stop-saying-i-drank-the-kool-aid/

And yes, ultimately there's no good or bad, as this life we appear to live in is more like an illusion.

I just learned the origin of that phrase! I remember the tragic event.
https://en.wikipedia.org/wiki/Flavor_Aid