What a complete waste. Don't you have any desire to ask him about, I don't know, his own ideas? Or any kind of substantive question at all, instead of just his competitors?
I don't understand the desire to keep waging this battle against string theory, supersymmetry and every other idea other...
I find it really troubling and misleading when I keep reading about Feynman being among the critics of string theory as if he's standing with Woit and Smolin. Feynman died in the 80s, when only a few of the most preliminary facts about string theory were known. There's no serious reason to...
Very likely the best possible answer to the question that doesn't require detailed string theory knowledge can be found here.
Long story short, D-branes are just an emergent phenomena that are shown to arise from the interaction of open strings. Open strings end on them, with Dirichlet...
I have to highly recommend Doug Sweetser's free book "doing physics with quaternions":
http://www.theworld.com/~sweetser/quaternions/ps/book.pdf
It includes a section on gravity, among other areas. Other related resources can be found here...
Hi all.
Ive lurked around these parts for some time. This is my first but I am sure not the last time I'll be inclined to post here.
I came across a reference recently to the Duff-Smolin debate, which was apparently once hosted at this url...