In the far, far future, essentially all matter will have returned to energy. But because of the enormous expansion of space, this energy will be spread so thinly that it will hardly ever convert back to even the lightest particles of matter. Instead, a faint mist of light will fall for eternity through an ever colder and quieter cosmos.

Einstein's theory of relativity does a fantastic job for explaining big things. Quantum mechanics is fantastic for the other end of the spectrum - for small things.

Exploring the unknown requires tolerating uncertainty.

When you know the answer you want, it is often all too easy to figure out a way of getting it.

Physics grapples with the largest questions the universe presents. Where did the totality of reality come from? Did time have a beginning?

I enjoy reading blogs, but am not interested in having my spurious thoughts out there.

The real question is whether all your pondering and analyses will convince you that life is worth living. That's what it all comes down to.