Eduardo Maçan shared a link.

Xkcd's Long-running "Time" Comic: Work of Art Or Nerd Sniping? – Slashdot

Fortran IV writes "Randall Munroe's xkcd webcomic has done some odd things before, but #1190, 'Time,' is something special. It's a time-lapse movie of two people building a sandcastle that's been updating just once an hour (twice an hour in the beginning) for well over a month (since March 25th), a….