Usually the Big Bang is depicted as a beginning point. But Einstein’s equations and quantum physics break down there: time disappears. Back in the 20th century, Wheeler and DeWitt derived an equation for the entire Universe without time. Later, Wootters proposed looking for time within — not outside, but from matter itself. The key became quantum entanglement — the inseparable connection of distant particles. It's like a clockwork mechanism where each gear sets the pace for the other: their mutual rotation is the flow of internal time.

Applied to an expanding Universe (with different speeds in different directions), the calculation showed: in the superposition of all possible histories, the probability of zero volume is exactly zero. Big Bang without a zero-size point. Computer simulations confirmed this for all permissible parameters.

Thus gravity and quantum information intertwine, and time is the ticking of internal clocks set in motion by matter itself.