3 ms·
There is no such thing as “flat spacetime”, or, above all, “absolute” background spacetime. This is what relativity explicitly denies. Spacetime appears as pair
by atemerev 2y ago
There is no such thing as “flat spacetime”, or, above all, “absolute” background spacetime. This is what relativity explicitly denies. Spacetime appears as pairwise metrics between objects (i.e. quanta/particles), and doesn’t exist beside objects.
- cryptonector 2y agoThere are no absolute coordinates. But things like the Schwarzschild metric very much map between flat and curved spacetime. You should search for "conformal mappings to flat spacetime". This is not a controversial thing.