So the EmDrive glitches the universe size? This is hilarious.
Could someone explain the current thinking around how energy quanta relate to the size of the universe, or rather why wavelengths larger than the universe are impossible?
If the latter were true, I'd expect that an energy quantum corresponding to 0.99 * universe would be equally impossible as 1.01 * universe, and that only integer multiples of the corresponding frequency would be allowed (i.e. a harmonic series across the universe).
This seems unlikely, because - unless I've missed something obvious - you'd have to be able to set up a wave with a phase velocity > c.