/sci/ - Science & Math

>>6398089
It's extremely difficult for me to judge. Firstly, he does a lovely job of presenting the beauty of it, but he really really takes his time.* I knew the ideas before I read it and so I can't tell if you get the point if you don't invest time to get to the right parts.
I must say I'm very positively surprised by the book, but I don't quite understand how: The chapter are totally out of order and even sometimes repetitive. The merit is that it puts some concepts in a clear way I've never seen before (in particular, I love section 7 of the first book, the lattice treatment of phi^4-theory).
>...if I don't know any QFT
Yes, that's the point of an introduction to QFT ;) And that one is extremely easy on the eyes. If you want t a book that comes to the point, I hear people use this now
http://web.physics.ucsb.edu/~mark/qft.html
but I'm personally not extremely interested in doing quantum field theory.

*the second book "Quantum Electrodynamics", the quantization of the electromagnetic field (on discrete space approximation) starts - I shit you not - on page 881.

>>6397914
>Electromagnetism is quantized, but not modeled as a bending.
It's bending too, but not of velocity trajectories (not of spacetime itself). The electromagnetic field strength is the curvature of, roughly, the space of 'square root of the probability density' values. The other two forces are de facto the same as electrodynamics, just with more photons (then called W,Z-boson in the weak force case, of gluons in the strong force case).

>That string guy who talked with that popularize guy who has Feynman-like hair said that ST [rivals] are nowhere near ST and that's why he's in ST. How true is this statement?
If quantum gravity is New Zealand, then String theory is Australia, the other theories are European countries, but ships aren't invented yet.