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No best answer has yet been selected by eezablade. Once a best answer has been selected, it will be shown here.
For more on marking an answer as the "Best Answer", please visit our FAQ.Is there not meant to be something about a Time Machine not being able to travel to a time prior to its invention, otherwise its travel would itself affect time &history? If the machine's inventor killed his father, he could prevent his own birth and......my head is hurting now and I need to have a quick rub down wi the AB Newsletter.....NURSE!
I think you have all missed the point;
There aren't people in Ladbrokes because forward time travel hasn't been invented, YET.
You wouldn't be able to travel to a time prior to its invention as you would only be able to go forward in time (and thereofore couldn't meet your father/ distant relative)
and chazza, people haven't come back because to tell us about it as I am talking about FORWARD time travel, into the FUTURE NOT the PAST
Now discuss the point, not a different one.
eezablade say a machine has been invented and it's been in existance for a 1000 years, there will have been 100's of millions of folk who've lived during that time. Any one of them could travel back in time and kill an ancestor which in turn would prevent the traveller being born. The paradox still applies.
"eezablade a time machine is invented in 2100. What stops someone living in the year 3100 travelling back to the year 2500 for example? It's 400 years AFTER the invention so according to the "rules," it's possible"
No it's not because they would still be going back in time.
Whenever it is invented, as each day passess, that day becomes history, it will never be reachable again.
The date of invention is irrelevent.
It's not that I'm not capable of understanding the points you make it's just that they do not stand up to close examination. If your theory does not hold water that is not my problem.
You have said a person can travel back and return to their starting point, I am asking what happens to a person they pick up from the future if they both want to travel back?
If anyone knows more about the practicalities of time travel or the paradoxes can they please put answers on my question regarding historical imperative and the actaul means of achieving time travel. Please?
corbyloon is also right, a time machine cannot travel prior to its invention, making claims about gambling and ladbrokes obsolte until one is invented, then you'd have time-gamblers.
According to current undertsnading of space-time if you picked someone up they could easily ttravel back with you, however the paradox would rely on historical imperative and causality. Basically would the universe care if someone jumped through time, does anything we do really matter? If it does then there would be problems, but if everything just accepts the change and carries on then it doesn't matter. Philosophical but important.