Just an hour ago my wife and I had an argument over our neighbor and I cut her short telling her I wasn’t interested in these types of inanities (I know, I know, telling this to your wife can be disastrous). We’re still not talking but I found this engaging essay on "Why we exist" and I couldn’t help wondering, "Exactly what happened during the Big Bang that led us to this argument?"
Whenever life throws at me existential perplexities I usually think about my place in the universe and why things happen the way they do. I am not referring to cause and effect. As the essay says billions of things exactly had to be the way they were in order to enable us to exist.
Even setting aside the issue of being here and now, the probability of random physical laws and events leading to this point is less than 1 out of 100,000,000,000,000,000,000, 000,000,000,000,000,000,000,000,000,000, equivalent to winning every lottery there ever was.
Personally I believe our perception of the universe and the life as it exists is based on our current knowledge. There was a time when people thought the earth is flat and the sun goes around the earth. This perception existed for thousands of years until scientists discovered, over a period of some centuries, that the earth is not flat and the sun does not go around the earth. The essay says if the chain reaction that happened during the Big Bang had even slightly altered life wouldn’t have existed.
I think we very easily believe that there is just one big bang in the history of the known universe and there were no other big bangs. For all you know big bangs are happening all the time in the universe.
And life must also be different in different cases and we may not be even able to define or recognize different definitions of life. It is all about perception. Right now we believe life is all about thinking, feeling and understanding things around us or beyond our consciousness. Life may hold altogether a different meaning in another part of the universe. Maybe intelligence doesn’t even need a body to exist or to feel. Maybe there are big globules of intelligence floating around the sizes of suns and stars in various parts of the universe.
Coming back to why we exist and why things happen the way they do. It will certainly take us a while to understand this if at all we understand one day. I don’t believe that the history of our perception begins with the Big Bang because lots of stuff must have happened in order to trigger the mother of all the bangs (according to history of the bangs we know). It may not usually be a scientific question. Intelligence and human emotions are beyond science.
There is another realm we are unaware of.