(July 7, 2015 at 1:55 pm)LostLocke Wrote: Or, just maybe, the past includes the efforts of any time traveler trying to alter it.
IE... you can't go back in time and kill Hitler before WW2 because all of Hitler's past that we know would include your effort to try and kill him.
Yes, that is one of the approaches one can take. If one goes back in time, maybe one can try to kill Hitler, but that does not mean that one will succeed. There were many attempts on his life, but "god" protected him from them.
My own preferred solution is that time travel into the past is just impossible. That seems to best fit the facts as we know them.
"A wise man ... proportions his belief to the evidence."
— David Hume, An Enquiry Concerning Human Understanding, Section X, Part I.
