It might be phrased differently. Like this. Is there something more universal than time. Look at spacetime from an outsider's perspective. Suppose it is 2D+1D, then one way time can be represented is as frames where each frame is slightly different. The interesting part is that those consecutive frames have very strong constraints. But what are those constraints? One of them is that energy is conserved. One other might be that it's Markovian: you only need to have the last frame for the next. If there exist (entangled) histories this seems to be wrong. The quest for (moderately) consistent frameworks that all have their own emergent nature of time might be a very fruitful one. It's rather a "beyond" time than a "before" time.
