Goddidit!

[madarab]

No one really understands what gravity is, not at any fundamental level. Therefore, it must be invisible pink unicorns standing on your head. What pulls the unicorns down? There's another invisible pink unicorn standing on top of that one and so on. It's unicorns all the way up!

Comments

[astrogeek01]

Nu-uh! Is purple leprechauns on bicycles!