Kip S. Thorne

Everything is drawn inexorably toward the future.

Some segments of this book may be rough going. That's the nature of real science. It requires thought. Sometimes deep thought. But thinking can be rewarding. You can just skip the rough parts, or you can struggle to understand.

We humans are confined to our brane.

The fastest that human spacecraft are likely to achieve in the twenty-first century, I think, is 300 kilometres per second.