- #1
bombadil
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One of string theory's triumphs is the post-diction of a spin-2 field, which is supposed to represent gravity (GR). Yet, only in the weak field limit ("linearized") can it be shown that GR is a spin-2 field. So here's my question: why are string theorists confident that they have post-dicted GR if it isn't clear that GR is a spin-2 field?
Disclaimer: I'm in physics, but have had little exposure to GR and HEP, and I don't have any strong biases in this area, just curious.
-bombadil
Disclaimer: I'm in physics, but have had little exposure to GR and HEP, and I don't have any strong biases in this area, just curious.
-bombadil