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Thank you so much for such a lucid explanation of String Theory.
Re "So curvature=gravity..." its a really elegant and beautiful concept.
I'm no mathematician but have a simple appreciation without the mathematical depths of the concepts you explain.
However, I'm a bit befuzzled by the randomness described by String Theory at the quantum level with the idea of a Big Bang emanating from a single point proposed in GR.
How does String Theory account for the apparent lack of randomness in a Big Bang universe with galaxies travelling apart from one another at a fixed speed apparently from a single point back in time?