Editing Talk:1716: Time Travel Thesis

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Alright, anyone who is willing to make the claim that "Google Glass will probably become popular in the 2010's" is living in a fantasy world. I've edited it to make the far more accurate claim that it could be either because Glass became popular or because Glass was an esoteric piece of hardware that lived (and died) in the 2010's. [[Special:Contributions/172.68.34.122|172.68.34.122]] 15:21, 5 August 2016 (UTC)
 
Alright, anyone who is willing to make the claim that "Google Glass will probably become popular in the 2010's" is living in a fantasy world. I've edited it to make the far more accurate claim that it could be either because Glass became popular or because Glass was an esoteric piece of hardware that lived (and died) in the 2010's. [[Special:Contributions/172.68.34.122|172.68.34.122]] 15:21, 5 August 2016 (UTC)
:2024 here, and definitely the latter. (Also "2010's" can only mean "belonging to the year 2010". So, whilst I won't correct the actual title text, I just want to say that one should really write of "the years 2010 through to 2019" as "the 2010s", a simple plural, or "<foo> of the years 2010-2019" as "the 2010's <foo>". No, it isn't an 'abbreviating apostrophe', as it just makes it one character longer. I have no sympathy at all for any of the needless pluralising uses. [[Special:Contributions/172.69.194.217|172.69.194.217]] 16:48, 27 February 2024 (UTC)
 
  
 
Can someone include the explanation what a closed timelike curve is? --[[Special:Contributions/162.158.133.66|162.158.133.66]] 07:32, 8 August 2016 (UTC)
 
Can someone include the explanation what a closed timelike curve is? --[[Special:Contributions/162.158.133.66|162.158.133.66]] 07:32, 8 August 2016 (UTC)
:Well, {{w|Closed timelike curve|the wiki article}} explains all, if you're still here and needing to know, but could be boiled down as:
 
:*A timelike curve is a path of existence through spacetime. Typically either 'stationary' (by any given frame of reference), and experiencing time at standard rate, or moving (ditto), whilst apparently experiencing less time-per-time. It must lie within an event's "light-cone" (or violate relativity/etc).
 
:*If you can 'trick' spacetime geometries such that it can become its own past (perhaps warping spacetime back upon itself, so that future-developments become past-events, or certainly something that somehow jumps frames of reference creatively, perhaps using weird masses that are moving, rotating and/or negative!) then the curve into a given point's future can arrive back into its past light-cone (all past events that can reach the current one).
 
:*Should that be the case, then the line(s) going round in a temporal circuit is(/are) 'closed'. As in a closed electrical circuit (fully connected), ''not'' a closed door (blocking passage, preventing travel).
 
:*This leads to a possible paradox (hopefully self-reinforcing, or we have to deal with the self-contradicting problems somehow!), but not ''actually'' known to be completely disallowed by physics.
 
:...simple to imagine, once you know where we're going with it, but hard to summarise. As I've just proven to myself. :P [[Special:Contributions/172.69.194.217|172.69.194.217]] 16:48, 27 February 2024 (UTC)
 

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