Quote
"Thus, even now, three and a half centuries after Galileo... it is still remarkably difficult to say categorically whether the earth moves..."
J
Julian Barbour"[T]he work that I did with... has shown... time that is measured by clocks is... an average of all the changes in the universe."
Julian Barbour is a British physicist with research interests in quantum gravity and the history of science.
"Thus, even now, three and a half centuries after Galileo... it is still remarkably difficult to say categorically whether the earth moves..."
"If you could freeze the camera now and... show me as I am, and all the atoms... and... the whole universe... like a snapshot, the would be... a NOW."
"[I]f you imagine two NOWs... there will be some difference between them, and if you work out some weighted average of all of that difference... you can call that... the amount of time between them. ...[T]his has nothing to do with some substance... Its just difference between those two things. ...[T]his is the quantity that is... being measured by my watch..."
"[[Symbols|[S]ymbols]] have no meaning if divorced from the entities that they represent."
"[T]his is very different from the Newtonian picture where Newton presupposes theres a river of time flowing, that is there before anything is put into it. ...[T]he things are there first, and the time is deduced from it afterwards."
"If you could look microscopically... at... my molecules... you would not recognize me from one second to another. In my body, every second, one hundred million million million... hemoglobin molecules... is destroyed, and the same number is created. So... at each split second, Im really a very different person."