If you’ve never read anything by Dr. Michio Kaku, I highly recommend you go find something, anything, that he’s written. He’s also on the Science Channel along with hosting a few documentary projects along the way. The man is a brilliant theoretical physicist and incredibly entertaining to listen to.
But, to get you started, here’s a few (nine) videos of him tackling questions like alien life, time travel, and teleportation. Absolutely fascinating!
