As work on my time machine progresses, I’ve got to thinking about the moral dilemma of changing things in the past, and the possible affects this may have on the future
So after doing a bit of research I now present the two main views,

as we all know one of the first people to ever successfully invent a time machine was Doc Emmett Brown, he was rather impressed by his invention, but soon discovered a few pitfalls of time travel and felt that it causes great risk to the fabric of the space time continuum.
Although as far as we know he’s still gallivanting around in his!

And at some point in the future it becomes necessary for humanity to come back in time to help a couple of high school kids with their history report, giving them full use of a time machine without any warnings whatsoever, even going and removing s pair of royals from history in order to complete the line up of their band
All of this is done without any obvious changes to the present day, yet ensures a happy utopia in future

So who’s right, crazy old scientist who seems to just be guessing?
Or Rufus, a man from the actual future who seems to think its fine?

rufus,just because he can play mean guitar also 😉

I wouldn’t worry about it – Rufus is most probably right.

Remember that time is a bit wibbly-wobbly.

The Doctor

Your forum name is an anagram and I claim my £10

you claim your £10?
thats a new game to me, plus its not an anagram

If both the future and past exist as reachable constructs then surely anything you do in the past is something that you’ve already done and as such the present is only present because you’ve already made that change?

its not an anagram

No, it’s a spoonerism.

Now, where did I put the ban hammer…?

If time travel to the past is possible then where are all the people from the future?

If you lived in the future, would you want to come back to now?

No but it would be a laugh to go back to Dallas in 1963 and shout “DUCK”

If time travel to the past is possible then where are all the people from the future?

There’s an argument that you need 2, one at each end therefore as soon as we’ve invented one then it’ll all kick off.

If you lived in the future, would you want to come back to now?

Unlikely, late 90s Sydney was in fact pretty much the highpoint of human civilisation. I’d go back there.

No but it would be a laugh to go back to Dallas in 1963 and shout “DUCK”

Nah, what actually happened was conspiracy theorists travelled back in time from the 1980’s and lay in wait on the grassy knoll…

Stephen King suggested that (more or less) in his book 11/22/63. His view was that time doesn’t like being changed and will try to stop you from doing so…

No idea – but bagsy a go in your time machine when you get it finished.

No but it would be a laugh to go back to Dallas in 1963 and shout “DUCK”

Thank you, Kryten.

Stop the presses!

[video]http://www.youtube.com/watch?v=SU0FdTybqOc[/video]

Your all missing a very valid point……

When sky net tries to take over humanity many years from now we will have to send a state leader back in time so there.

Your forum name is an anagram and I claim my £10

That’s inflation for you.

If both the future and past exist as reachable constructs then surely anything you do in the past is something that you’ve already done and as such the present is only present because you’ve already made that change?

I think something in my brain just burst.

OP – Rufus FTW

There’s an argument that you need 2, one at each end therefore as soon as we’ve invented one then it’ll all kick off

isn’t that why you build one with wheels, so you can just take it with you?

Time is not linear and as such you can’t go back or forward in it.

Also, it is relative, there is no external clock outside our universe to sync with therefore you cannot go back to a precise time in our universe as there was never a precise time to start with.

All there ever has been is now. Everything and every ‘time’ exists all at once.

Rufus is most probably right.

You need to listen to this guy Rufus. He KNOWS what he’s talking about.

Also see Red Dwarf ‘Future Echoes’ for a proper treatment of time travel.