older theories become more and more unclear when one tries to use them to obtain insight into new domains. - David Bohm

Ultimately, all moments are really one, therefore now is an eternity.

To see the universal nature of gravitational attraction, Newton had to become free of the habitual compartmentalization of earthly and celestial matter, a form of fragmentation that was implicit within the tacit infrastructure of the “normal” science of his day. To break away from the habitual and commonly accepted modes of thought, which had been taken for granted for generations, required intense courage, energy, and passion. Newton had these in abundance, and at the height of his powers, he was always asking fundamental questions. The crucial factor in Newton’s vision, and indeed in the creation of all new ideas, is this ability to break out of old patterns of thought. Indeed, once this has been done, new perceptions and novel ideas appear to arise naturally.

We don't need the notion of an identity, of an all-important identity on to which we are going to hold, because that gets in the way of the need to change our reflexes. Once we identify with something, our reflexes are that way – it's very important, 'necessary'. And we will want to preserve that identity even thought it may involve ideas that are false.