Sir Roger Penrose, a renowned physicists, insists that the Big Bang model isn’t entirely correct because it doesn’t take into account the existence of low entropy. His theory is that because our universe was born in a state of low entropy 13.7 billion years ago, it is “just one of many in a cyclical chain, with each Big Bang starting up a new universe in place of the one before,” writes Alasdair Wilkins.
Prepare to have your mind blown:
Penrose posits the end of each universe will involve a return to low entropy. This is because black holes suck in all the matter, energy, and information they encounter, which works to remove entropy from our universe. (Where that entropy might go is another question entirely.) The universe’s continued expansion into eventual nothingness causes the black holes themselves to evaporate, which ultimately leaves the universe in a highly ordered state once again, ready to contract into another singularity and set off the next Big Bang.
As alternative theories go, it’s not without its merits, but there’s no evidence to support it…until now. He says he’s found evidence for his ideas in the cosmic microwave background, the microwave radiation that permeates the universe and was thought to have formed 300,000 years after the Big Bang, providing a record of the universe at that far distant time. Penrose and his colleague Vahe Gurzadyan have discovered clear concentric circles within the data, which suggests regions of the radiation have much smaller temperature ranges than elsewhere.
So what does that mean? Penrose believes these circles are windows into the previous universe, spherical ripples left behind by the gravitational effects of colliding black holes in the previous universe. He also says these circles don’t work well at all in the current inflationary model, which holds all temperature variations in the CMB should be truly random.