cybis320

Hi Max, many ideas explored in your book are centered on the concept of infinity. E.g. The idea that there are infinite copies of you in an infinite number of universes, etc. But towards the end of the book you say that infinity is incompatible with the idea of a mathematical structure. You hint there might be a fine granularity to reality. I've probably misunderstood something, but isn't there a contradiction there?

Thanks for the reply, Max. If reality turns out to be granular, then there aren't infinite copies of us, correct?

The effect is explained in detail here (yes the man will appear to grow old faster as a function of their closing speed): http://en.wikipedia.org/wiki/Twin_paradox#What_it_looks_like:_the_relativistic_Doppler_shift

Probably something to do with: 'The Planck length is, in principle, ... , the shortest measurable length' http://en.wikipedia.org/wiki/Planck_length