[Arnavion]

>The implication is clear. Even simple programs will eventually require async, and should therefore just use it right now.

There's no implication. Read what you quoted instead of digging for quick jabs. "Even the simple, Unix-esque atomic programs can’t help but do two or three things at once. Okay, now you set it up so, instead of waiting on read or accept or whatnot..."

>unix-esque in this paragraph is supposed to evoke ls or cat. Is your program really going to be simpler than cat? No? Then you apparently need async.

cat and ls don't do two or three things at once.