Here’s the part where they explain the theoretical solution

Under Oppenheim’s theory, however, space-time wouldn’t just be smooth, it would become sort of wobbly and unpredictable.

Here’s where it becomes testable. This wobbliness would result in fluctuations of measurable properties that are larger than the fluctuations predicted by quantum theory.

With the right experiment, physicists could look for those fluctuations.

We have shown that if space-time doesn’t have a quantum nature, then there must be random fluctuations in the curvature of space-time which have a particular signature that can be verified experimentally," says physicist Zach Weller-Davies of University College London.

“In both quantum gravity and classical gravity, space-time must be undergoing violent and random fluctuations all around us, but on a scale which we haven’t yet been able to detect. But if space-time is classical, the fluctuations have to be larger than a certain scale, and this scale can be determined by another experiment where we test how long we can put a heavy atom in superposition of being in two different locations.”

I think they don’t really do a good job of explaining it, so if anyone here knows more about it, please share!

  • xkforce@lemmy.world
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    11 months ago
    1. Velocity has to do with rest mass not matter/not matter
    2. This is again, speculation. There is zero evidence that space-time magically isn’t quantum like everything else. Not wanting to deal with the difficulties of merging quantum mechanics and relativity is not sufficient to necessitate claiming space-time isn’t subject to quantum physics. What we want the world to be isn’t the same as what it is. So yes space could be different than everything else but the burden of proof that this is so is on the person that claims this and right now, the only justification for it is that it’d be a really hard problem to solve if space is quantum. That’s it. There’s no basis for it from first principles.
    • HubertManne@kbin.social
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      11 months ago

      regardless space can move faster than the speed of light but matter cannot. And mass is a property of matter. so if space is quantum like then it can break the speed of light. then again spooky action at a distance and all.