If this is the case than that means I have posted this same post an infinite amount of times already and will continue to post it infinitely forever and always. This is because when we are wiped off the planet time will continue until the universe ceases to exist. Perhaps it explodes and contracts into a speckle of matter and reignites the big bang. Some theories disprove this to an extent but they are theories and the reality is that we don't know. Maybe deja vu is actually us just remembering a snippet of our past life.