[Swizec]

Relevant xkcd comic on avoiding the most obvious upward next step: http://xkcd.com/761/

Trying out a lot of things for a bit before commiting also seems to be the approach we use as children, I wonder why we forget about it once we're about 20.

[parallel]

I think it's because we start to feel more pressure to succeed and to succeed quickly, so we stop playing and tinkering.