Yeah! This.

'Perspective' ...

Mini perspective: step away from the desk, do something literally creative. I play my guitar.

Major perspective: get the hell out of the city, actually do something on a weekend. Come back - all of a sudden you have fresh eyes and see things more clearly.

I actually think that soft devs should take more vacation.

You know that professional concert musicians only practice a few hours a day - any more is pointless. You just can't concentrate that long.

A really gutsy move would be for Google to give a bunch of 'long weekends' where nobody can work, or even more vacation. And see what the results are.