Foamy spacetime at the Planck scale could solve cosmological constant’s mismatch with dark energy

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It’s bubbles all the way down.


What’s wrong with Quantum Foam? I rather like the idea. I’d once read that some observation of a distant gamma-ray burst did not confirm the presence of quantum foam as it should have. I forget why exactly – something about how gamma rays should arrive before the rest of the visual signal, when traveling across quantum foam.


Or, say … pixelated?