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The Problem With Quantum Gravity
There's something going on here for quantum gravity and depending on there's different theories that you can have with space-time torsion. Some of them have what could be anti-gravity but we just because you can write down a theory that has anti-gravity doesn't mean it describes nature so that's the challenge we're trying to figure out what is the good theory. There was this russian who maybe even in the 50s or 60s he claimed to detect torsion from the sky and claimed that it moved faster than light. I'm trying to advocate that we at least study it and stay open-minded we don't know exactly what theory but maybe someday there's