Quanta of energy have to do with the wavelengths of light emitted from, say, an electron jumping to a lower energy level. That is what is quantized, and it comes from the boundary conditions of the energy levels themselves. I was making a comment about how many people have speculated that quantization extends to space-time itself, that we move through the universe in a quantized way; that is what a discontinuous universe would look like. This new research suggests that there aren't boundary constraints on space-time, apparently.
Ah, I see. "Smooth, not foamy" makes quite a bit more sense in this context, actually. I'm just not sure how much I want to hinge a change in our entire physical worldview on the fact that some particles acted like they were on pavement rather than gravel, as it were. This is extremely interesting, though. Planck's constant has long been thought they be-all end-all, I believe. Perhaps nuts to that."If foaminess exists at all, we think it must be at a scale far smaller than the Planck length, indicating that other physics might be involved," study leader Robert Nemiroff, of Michigan Technological University, said in a statement.