Ok ... so for all those String Theory doubters out there ... here's a five part Youtube of
Ed Witten's story behind the development of String Theory ...
Part 5/5 outlines his conclusions and personal views for why he sees String Theory as important and is well worth listening to.
Its great to see Ed in action ... it isn't very often one gets the opportunity .. a pity, really. An amazing lecture (unscripted also, I think). Not one 'err' or 'um' in the whole five parts ... I think he's going entirely from memory of the history part of it all also. Unbelievable actually !
Cheers