
A conversation between Andy Strominger and Stephen Wolfram (June 26 2021)
The Stephen Wolfram Podcast
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How Do You Identify Spin From That?
When you talk about a particle, i mean these ae, we've got some world sheet. And that world sheet has a certain kind of e. You can decompose the motion of that world sheet in terms of modes - and each mode is a separate particle. So you cannot write a consistent theory of this type that does not have gravity in it.
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