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

The bottom line is that time travel is allowed by the laws of physics.

I may be a Jewish scientist, but I would be tickled silly if one day I were reincarnated as a Baptist preacher.

Time allows change to take place and the very evolution of the universe is what requires some conception of time. Mathematically can we write down a universe that doesn't have time? Sure. Do we think that would be realised in the larger reality that is out there? None of us take that possibility seriously.

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.

When kids look up to great scientists the way they do to great musicians and actors, civilization will jump to the next level

Black holes provide theoreticians with an important theoretical laboratory to test ideas. Conditions within a black hole are so extreme, that by analyzing aspects of black holes we see space and time in an exotic environment, one that has shed important, and sometimes perplexing, new light on their fundamental nature.