TIME WARPS – John Gribbin (1980)

I haven’t read Stephen Hawking’s Brief History of Time, although possibly a smarter version of myself in a parallel universe has. I’m sure Hawking wouldn’t rule it out. Or John Gribbin.

Is time travel possible? Gribbin takes us through the usual paradoxes and problems, then embarks for the outer limits of physics and metaphysics.

He suggests that time travel might be possible given that there may be an infinite array of universes playing out infinite variations of our pasts, presents and futures. All we need do is figure out how to visit them. Of course this may take some time.

Readers coming to this book 30 years late may notice its one unassailable timewarp, namely Gribbin’s very 1970s confidence that Stonehenge and other stone circles served as astronomical computers. The evidence for that is looking a little rocky these days, the last time I looked anyway.

Overall, however, time has had little effect; the central topic remains mindbendingly speculative and well beyond the current means of our species to prove either way. Which is all very good; an interesting universe must keep some of its mysteries, afterall. And it’s good to bend those little minds of ours once in a while, isn’t it?