The laws of nature tell us themselves that not only the universe have popped into existence like the proton and have required nothing in terms of energy but also it is possible that nothing caused Big Bang. NOTHING. The explanation lies back to the theories of Einstein and his insights into how space and time in the universe are fundamentally intertwined. Something very wonderful happened to time at the instant of the Big Bang. Time itself began.
To understand this mind-boggling idea consider one of these – a black hole floating in space. A typical black hole is a star so massive that it is collapsed in on itself. It’s so massive that not even light can escape its gravity which is why it is almost perfectly black. It’s gravitational field is s powerful it doesn’t only warp and distort light but also time.
To see how imagine a clock is being sucked into it. As the clock gets closer and closer to the Black Hole it begins to get slower and slower. Time itself begins to slow down. Now imagine a clock as it enters a Black Hole. Well assuming of course it could withstand the extreme gravitational forces, the clock would actually stop. It stops not because its broken but because inside the Black Hole itself time doesn’t exist and that’s exactly what happened at the start of the universe.
The role played by time at the beginning of the universe is, I believe, the final key to removing the need for a grand designer and revealing how the universe created itself. As we travel back into time towards the moment of the Big Bang, the universe gets smaller, and smaller and smaller. Until it finally comes to a point, with the whole universe is in a space so small that it is in effect a single infinitesimally small, infinitesimally dense – Black Hole.
And just as with modern-day black holes floating around in space, the laws of nature dictate something quite extraordinary. They tell us that here to time itself must come to a stop. You can’t get to a time before the Big Bang because there was no before the Big Bang.