The Knowns And Unknowns of Physics

A rather entertaining audio interview with Sean Carroll on what we know and what we don't know in physics.

Physicist Sean Carroll probes fundamental physics by studying the structure and evolution of what he calls the 'preposterous universe'.

He says we've solved nearly all the problems of everyday life, scientifically speaking, but the rest? It's a mess.

Physics is in a bind because so much of its classical theory doesn't match what has been discovered recently. Have they hit the physical wall?

Zz.