We discovered that life may be billions of times more common in the multiverse
Why is there life in our universe? The existence of galaxies, stars, planets and ultimately life seem to depend on a small number of finely tuned fundamental physical constants. Had the laws of physics been different, we would not have been around to debate the question. So how come the laws of our universe just happen to be the way they are – is it all a lucky coincidence?
In the last few decades, an increasingly popular theory has come to the fore. The multiverse theory suggests that our universe is just one of many in an infinite multiverse where new universes are constantly being born. It seems likely that baby universes are produced with a wide range of physical laws and fundamental constants, but that only a tiny fraction of these are hospitable for life. It would therefore make sense that there is a universe with the strange fundamental constants we see, finely tuned to be hospitable for life.