We must first understand that time moves differently for G-d. It doesn’t move forwards or backwards but is rather an extended, still landscape. Day One.
We can’t make time move any way other than ‘forwards’ because to do so would violate the second law of thermodynamics – ‘all tends to entropy’. But also because time doesn’t actually move. And even if it did, it wouldn’t make any difference whether it ran ‘backwards’ or not – time running backwards just looks like an electric screwdriver twisting the opposite way. Metabolism would still exist, it would just look like the Earth giving you your skin cells and hair back until you diminish enough to rejoin your mother.
No, time doesn’t work as we think it does. Time is held as the exclusive domain of G-d – an endless Now in which G-d resides. And that is why Moshiach isn’t coming.
Wait, why? you ask, Did I miss something? It’s simple really: the idea of a ‘returning Messiah’ is contingent upon the illusion of the forward movement of time. If time doesn’t actually move, there can be no possibility of return.
Moshiach isn’t coming, because Moshiach already came. That’s why every subsequent prophet has acted as a pointer variable to Moses.
Now stop waiting for Moshiach and go sort your life out.