I've often thought long and hard about time travel. The past would not be a better place I don't think. We tend to think that our current level of technology is always the way it was, but even if you went back 10 years everything would be really unrecognisable and I think you'd have trouble coping with it all, even if you've lived it before.

Imagine, the temptation to tell yourself the outcome of all of your mistakes back then? Or if you went back long enough to invest in Google / Facebook shares at the beginning. Wow.

But I also think it would be interesting to see how far back things like autism went. Has it always been with us and we've only just discovered it? What would people's attitudes be like towards certain things?

Interesting don't you think?