I'm not sure if there is a good theory on why it ends up being this speed, but if any of the constants were even slightly different we wouldn't be in this unive

I'm not sure if there is a good theory on why it ends up being this speed, but if any of the constants were even slightly different we wouldn't be in this universe to talk about it. https://en.wikipedia.org/wiki/Fine-tuned_universe https://en.wikipedia.org/wiki/Fine-tuned_universe