A learning experience is one of those things that say, "You know that thing you just did? Don't do that." - Douglas Adams

I've come up with a set of rules that describe our reactions to technologies:

Curiously enough, the dolphins had long known of the impending destruction of the planet Earth and had made attempts to alert mankind to the danger; but most of their communications were misinterpreted as amusing attempts to punch footballs or whistle for titbits, so they eventually gave up and left the Earth by their own means shortly before the Vogons arrived.

Many were increasingly of the opinion that they’d all made a big mistake in coming down from the trees in the first place. And some said that even the trees had been a bad move, and that no one should ever have left the oceans.