You put down the thought in my head very eloquently. I read a cosmology book 12 years ago and I have become an atheist. As Jimmy Care says , it’s a lonely experience, it’s a revolution for one. I fell into nihilism and I still haven’t found any purpose in life. We will all disappear. I went through my late grandfathers photos, who was born in 1891. He lived, he suffered and in 100 years nobody will remember him. Our existence is pointless, we are a product of a coincidence. If anyone can cheer me up, you’re welcome:)