>>16839310 (OP)
if you accept the notion of infinite time, it follows that the universe is either exactly balanced between expansion and contraction, or see-saws eternally between one and the other
st. Bayes teaches us that if the one-and-done explosion universe theory was right, the probability that we would be having this conversation as Boltzmann brains in the post heat death soup is infinitely near to 1, while the probability of us existing in the interesting part of universal history with baryonic matter and all that is infinitely close to zero