It's a phenomenon known as the 'Sock Apocalypse'.
Where do they go?
Sock Puppet Theory suggests they've formed their own resistance against their human overlords.
Others claim they're secretly ruling the world from the Socktopia nation, where the air is thick with lint.
We may never find the truth.
Learn advanced Sock Hunting Techniques to join the quest.
...we're stuck with the Sock Drawer of Despair.