In quantum theory, distance is inverse to energy, because you need particles of very high energy to probe very short distances. The inverse of the Pl… - Lee Smolin

The landscape problem and the problem of background independence are closely linked. The latter is the only route the former has to experimental confirmation.

Is the flow of time something real, or might our sense of time passing be just an illusion that hides the fact that what is real is only a vast collection of memories?

In the theory of electric fields it is assumed that points have meaning. ...Physicists using general relativity... cannot speak of a point, except by naming some features of the field lines that will uniquely distinguish that point. ...the network of relationships evolve with time... constantly changing.