Food for Thought  

Some items on the internets of late:

"Our Lives, Controlled From Some Guy's Couch". Nick Tierney op ed about a theorist considering the possibilities that our world is actually an "ancestry simulation" a computer program being run by higher intelligences. Matrix-like, and interesting, if a bit out there.

"How To Save Money On Gas". Fairly self-explanatory.

"3D Sidewalk Art" is amazing. Check this out:

I also really like this one:

These are done with chalk, by the way.