The Focus forum is now closed.
We're sad to make this announcement because, over the years, the forum has provided fascinating debate on science and technology, and we’ve often printed the discussions in the magazine.
We’d like to thank everyone who’s joined in and made it such interesting reading for fellow forum members and all of us who work on the magazine.
Graham Southorn, BBC Focus magazine
Shadowwolf wrote:Oh you just know Tesla is going to appear somewhere in all of that...
M Paul Lloyd wrote:...I mean time travel is a wonderful concept and great fodder for the realms of science fiction but despite it being theoretically possible it really isn't is it.
MikeG wrote:Any thoughts on that, or am I just as crazy as Mr Basiago?
M Paul Lloyd wrote:I hold with the notion that although time travel is theoretically possible it is prevented from being actually posible by fundamental laws which we do not yet fully understand.
MikeG wrote:Maybe time travel is possible through parallel dimensions...
MikeG wrote:I can't imagine the possibility of time travel in a world where fate has not already determined the outcome of an event.
M Paul Lloyd wrote:For example no time travellers turned up at The Time Travelers Convention
MikeG wrote:If you said that before reading the article SW, I'm impressed. [...] or am I just as crazy as Mr Basiago?
Shadowwolf wrote:In a multi-verse of all possible outcomes from all possible choices it is really more akin to dimensional travel than time as the place you departed from still exists unchanged along with all other possibilities, at best you might create a few more by adding new possible outcomes but none would vanish.
M Paul Lloyd wrote:It is often suggested that Strings exist (theoretically speaking) within a multiverse system but I wonder if this is overcomplicating the whole thing and perhaps they could achieve much the same results via something a little less complicated consisting perhaps of just one other dimension where the laws of our universe, such as time, do not apply?
Does this sound like the basis for a good sci-fi plot yet
We would have to have a multi-verse of all possible outcomes occurring an infinite number of times, [...] then the change has to ripple through all the linked dimensions.
What would a universe without time imply?
Shadowwolf wrote:Why would we be restricted to only verses that virtually mirror our own...?
MikeG wrote:...there would be no past to travel to in that verse.
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