If something is boring after two minutes, try it for four. If still boring, then eight. Then sixteen. Then thirty-two. Eventually one discovers that it is not boring at all.

I particularly like that he uses powers of two to solve the dilemma.

Start of day, in the bathroom window:

On-way to mid-day (keep in mind above quotation if your patient enough to watch):

Mid-day, Union Square:

End of day, dinner: