Alxa

Brian - Loved The Elegant Universe and the Nova special you did on it. Is there anything new in the field of String theory? Is it still a valid theory or has it gotten more complex.

This has come up in past AMAs and it's always said not true for safety reasons. This rumor just won't die :)

Next up we learn dogs control the detonators...

I've seen the cliff jumpers in Acapulco, having to avoid the rocks makes that pretty crazy to watch. But cool in a strange way too.

Thanks! Hopefully in time you will write another book and again make it so we can understand it without a phd!