You mean thinking it, right? ;~)

Didn't Eric Schmidt say they'd know what you want even before you did? So no thinking required!

I know you were joking but you're also right.

I go food shopping every week at about the same time. I email trip plans between friends and schedule them. I don't drive to work but certainly if I did that's an obviously predictable event.

Between synergy among the various google properties and good pattern-recognition in the google cars (or whatever) system itself I'd be surprised if predicted trips didn't hugely overwhelm explicitly-ordered ones.