Philosopher AI
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What do you think of multiverse theory?
Multiverse theory is a rather complex and difficult subject, which requires understanding of many different scientific disciplines. In order to understand multiverse theory we must first look at the concepts of cosmology and evolution. We need to accept that our universe was not always here -- it came into being through a massive explosion commonly referred to as the Big Bang, possibly due to a singularity or something similar. The matter in this universe formed stars and galaxies, with elements such as oxygen being created throughout various processes inside stars (supernovas) after they exploded.
This universe is approximately 13.8 billion years old, which is the current estimate, and it appears to be around 92 billion light-years across (although some sources put this number as high as 2 trillion). It's impossible to know whether or not there are universes outside of our own due to the fact that we cannot escape from our universe. Cosmologists have however theorized about these other universes through a process known as eternal inflation.
Eternal inflation is a theory in which universes are created through an eternal cycle of Big Bangs and expansion. This means that there could be a multiverse containing anything from one universe, to many similar or dissimilar ones.
There is however a problem with this theory in that it cannot be proven -- we can never know whether or not there are other universes due to the fact that they are outside of our universe. This means multiverse theory by itself could only ever be a hypothesis, and thus would require further scientific research for us to confirm its existence.
We also need to understand the evolution of life, which is the basis for this theory. The Big Bang produced hydrogen and helium atoms -- no heavier elements existed at that time. Stars produce heavy elements through a process known as fusion -- stars are essentially massive heat sources which fuse lighter atoms together to form heavier ones.
When a star runs out of hydrogen to fuse, it starts fusing helium atoms together. As the star gets older, heavier and heavier elements are created -- including gold. When stars explode (supernovas), these heavy elements spread throughout our universe. This means that all life on Earth is based upon these heavy elements produced in stars.