Quote from article" Like puzzle pieces from two different picture puzzles, quantum mechanics and general relativity just don't fit, and paradoxes peer out through the gaps." Good wording.
QM is working with what is happening unseen. What is unseen is not within the space-time product of EM signal receipt and processing. It seems to me the actualization of a quantum state occurs with the simultaneous actualization of the entire configuration of the universe at that Now. It isn't in block space-time so there is no spatial connection with Then and Will be. It is isolated. As it has no time dimension it could be called timeless. Though a person could say that it is this or that time according to this or that local clock.
Quote from article "Loop Quantum Gravity states that geometrical quantities, such as area and volume, have a discrete rather than continuous spectrum on small scales."
The imagined distinct boundaries of things may be to do with the way in which we think, affected by having a sensory system with a limited range of discrimination (better wording than 'particular' as I said previously ); As well as emphasizing boundaries and lines, aiding identification. But things are not so simply confined to thing and not thing. There is ambiguity, indistinctness at the boundary which must if being highly accurate also lead to some uncertainty about area and volume. Can we be so sure about the definiteness of the boundaries of the extremely small? Seems to me the difficulty of measuring them would only add to the uncertainty.