"Buddhist temporal cosmology describes how the universe comes into being and is dissolved. Like other Indian cosmologies, it assumes an infinite span of time and is cyclical. This does not mean that the same events occur in identical form with each cycle, but merely that, as with the cycles of day and night or summer and winter, certain natural events occur over and over to give some structure to time." — Wikipedia

Big Bounce Simulations Challenge the Big Bang. Detailed computer simulations have found that a cosmic contraction can generate features of the universe that we observe today: https://www.quantamagazine.org/big-bounce-simulations-challenge-the-big-bang-20200804/