Expand your mind

So have a new favorite way to waste time: Lumosity.

The website claims to help your mind by helping you exercise your mind.  While I doubt this claim it is a fun way to waste a while online.  If nothing else it is a good way to quantify your abilities.  I doubt there is a high real world correlation though.  I am also a little surprised to see the website wants like $6 a month for a membership.  It seems like a lot, heck XBOX Live isn't even that much and you can play a lot more games there.