by Stephen Hawking
Is such an interesting read. But after I finished reading it, I am no wiser on what space is, whether time had a beginning and when. But at least I know there is psychological time, thermodynamic time and cosmological time.
Time travel maybe possible but there are paradoxes. If you travel back in time and kill your great great grandfather as a young man, will you born in the future? Unless you travel back in time but with an alternate history, but then where is the fun in this?
Are there singularities like the BBT or not? Does the universe have an edge?
Is determinism true or does the uncertainty principle rule it out completely?
Did god create the universe or rather the initial conditions and left the rest to take its course?
Is faster than light travel possible?
And finally, who was Einstein?