Geohashing

I’d like to share a recent XKCD comic:

That, in turn linked to a brilliant app at xkcd.com/geohashing, along with a link about geohashing.  I’m up on geoCACHing, but this was new.  My favorite part is that there’s this formula that produces these results, but I’m still unsure of what exactly to do with it!  My first thought is to use it as a basis to hide a real geocache locally (seeded with my birthday or something?  our wedding date?).

Tags: xkcd