Is our cosmos just a membrane on the edge of a far stranger reality?

String theory may be our best attempt at a theory of everything, except that it can't describe an expanding universe like ours. Now a radical new twist on the idea could finally fix that – but it requires us to completely reimagine reality

Mar 19, 2025 - 17:55
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Is our cosmos just a membrane on the edge of a far stranger reality?
String theory may be our best attempt at a theory of everything, except that it can't describe an expanding universe like ours. Now a radical new twist on the idea could finally fix that – but it requires us to completely reimagine reality