Summary

After writing several books targeted at specialists Stephen Hawking tries to write a book targeted at the everyman. In the book he lays out where our conceptions of the universe and time came from, and how and why they’ve been updated as more and more discoveries have been made.

Thoughts

I don’t know if this book was a waste of Hawking’s time, but it was fairly clear after reading the book that the talent for mass communication that other popular science writers have is somewhat lacking here. As one of the most intelligent and acclaimed scientists of our time it is not that surprising that the average layman may have difficulties keeping up. I in part blame Einstein for this because up until his general theory of relativity it seemed to me that the basic ideas of physics could be conveyed in a way that most people could understand, but once you start talking about gravity bending time and space, I think the allegories have to be dumbed down so much that they essentially represent nothing to the non-specialist and are quickly misunderstood by the masses. That being said there were some gems in the book, specifically the anthropic principle which we’ve all thought about many times in one direction. That is, we often have heard or thought “what are the chances that this universe unfolded in such and such a way. It’s impossible for that to have been purely chance”. What this observation neglects are that in order to make the observation in the first place the universe had to have unfolded in such and such a way. Every long string of events looks improbable in retrospect, yet any outcome of a sufficiently long string of events looks improbable. I guess this is similar to the idea that if something odd DOESN’T happen in your day, that would be a truly odd day. Hawking is also of course famous for his work on radiation observed around black holes, and so he goes into how black holes work which didn’t help me to sleep any better at night. In fact, I am now convinced that no one believes in black holes. The fact that the universe spawns these giant mouths that consume everything they come into contact with is something that I will continue to ignore.