Comments on: Rules for Time Travelers http://blogs.discovermagazine.com/cosmicvariance/2009/05/14/rules-for-time-travelers/ Sat, 20 Apr 2013 10:44:00 +0000 hourly 1 http://wordpress.org/?v=3.4.2 By: Regina Karl http://blogs.discovermagazine.com/cosmicvariance/2009/05/14/rules-for-time-travelers/#comment-79666 Regina Karl Sat, 20 Apr 2013 10:44:00 +0000 http://blogs.discovermagazine.com/cosmicvariance/2009/05/14/rules-for-time-travelers/#comment-79666 can i go to past so that all these worse present tragedies would be changed into normal? I am so desperately, wishing that the time machine would be at my sight at least at the moment that i'll use it to make my present worthy. first of all my mother died because of cancer, my whole family needs my mom so my father doesn't not have to work unstoppable until he's deadly tired. can i go to past so that all these worse present tragedies would be changed into normal? I am so desperately, wishing that the time machine would be at my sight at least at the moment that i’ll use it to make my present worthy.
first of all my mother died because of cancer, my whole family needs my mom so my father doesn’t not have to work unstoppable until he’s deadly tired.

]]> By: tom cotter http://blogs.discovermagazine.com/cosmicvariance/2009/05/14/rules-for-time-travelers/#comment-79612 tom cotter Tue, 19 Feb 2013 05:09:00 +0000 http://blogs.discovermagazine.com/cosmicvariance/2009/05/14/rules-for-time-travelers/#comment-79612 I hate the rhetorical defense on this subject, 'we don't know all that is involved in how time travel will work.' The general features of the current understanding of the laws of nature are sufficient that this will require more data and debate. Though a testable experiment; time or 'moving clocks' aren't globally synchronous. Is there a 'permissable kinesmatic translation' that would be symmetrical in all global events? I enjoy the fantasy of 'time travel'; but just because it is part of pop culture doesn't put it outside of scientific investigation. My best guess would be 'time travel' is up there with engineering a star, teleporting a macrosopic object or explaining the Universe with a 2" equation. We just live in a part of history where things aren't fully developed. Keep at it till humans find something better? I hate the rhetorical defense on this subject, ‘we don’t know all that is involved in how time travel will work.’ The general features of the current understanding of the laws of nature are sufficient that this will require more data and debate. Though a testable experiment; time or ‘moving clocks’ aren’t globally synchronous. Is there a ‘permissable kinesmatic translation’ that would be symmetrical in all global events?
I enjoy the fantasy of ‘time travel’; but just because it is part of pop culture doesn’t put it outside of scientific investigation.
My best guess would be ‘time travel’ is up there with engineering a star, teleporting a macrosopic object or explaining the Universe with a 2″ equation.
We just live in a part of history where things aren’t fully developed. Keep at it till humans find something better?

]]> By: BECAUSE IT’S 4.30AM AND I SHOULD BE SLEEPING INSTEAD. ESPECIALLY WHEN MY EYES HAVE STARTED REMINDING PEOPLE OF THE SUNKEN GARDEN. « Because I Should Be Doing Something Else http://blogs.discovermagazine.com/cosmicvariance/2009/05/14/rules-for-time-travelers/#comment-52379 BECAUSE IT’S 4.30AM AND I SHOULD BE SLEEPING INSTEAD. ESPECIALLY WHEN MY EYES HAVE STARTED REMINDING PEOPLE OF THE SUNKEN GARDEN. « Because I Should Be Doing Something Else Fri, 09 Oct 2009 20:27:47 +0000 http://blogs.discovermagazine.com/cosmicvariance/2009/05/14/rules-for-time-travelers/#comment-52379 [...] Spanish sci-fi films are like that, eh? Does Hector adhere with the rules for time travelers? If something happened, then it [...] [...] Spanish sci-fi films are like that, eh? Does Hector adhere with the rules for time travelers? If something happened, then it [...]

]]> By: cherise http://blogs.discovermagazine.com/cosmicvariance/2009/05/14/rules-for-time-travelers/#comment-52378 cherise Wed, 30 Sep 2009 00:03:26 +0000 http://blogs.discovermagazine.com/cosmicvariance/2009/05/14/rules-for-time-travelers/#comment-52378 how do you make a time a machine? how do you make a time a machine?

]]> By: WilfredT http://blogs.discovermagazine.com/cosmicvariance/2009/05/14/rules-for-time-travelers/#comment-52377 WilfredT Tue, 29 Sep 2009 01:21:37 +0000 http://blogs.discovermagazine.com/cosmicvariance/2009/05/14/rules-for-time-travelers/#comment-52377 Fernando, I read it. and I agree. Fernando, I read it. and I agree.

]]> By: قوانین مسافرت در زمان، بخش دوم « بی اجازه‌ی کوچیکترا نه! http://blogs.discovermagazine.com/cosmicvariance/2009/05/14/rules-for-time-travelers/#comment-52376 قوانین مسافرت در زمان، بخش دوم « بی اجازه‌ی کوچیکترا نه! Thu, 17 Sep 2009 14:01:05 +0000 http://blogs.discovermagazine.com/cosmicvariance/2009/05/14/rules-for-time-travelers/#comment-52376 [...] دیسکاور مگزین، رید مگزین، سایت دانشگاه [...] [...] دیسکاور مگزین، رید مگزین، سایت دانشگاه [...]

]]> By: Joram Arentved http://blogs.discovermagazine.com/cosmicvariance/2009/05/14/rules-for-time-travelers/#comment-52375 Joram Arentved Thu, 10 Sep 2009 01:32:20 +0000 http://blogs.discovermagazine.com/cosmicvariance/2009/05/14/rules-for-time-travelers/#comment-52375 My worst scenario is right now everything, I DIDN'T know, DIDN'T think, if I could count on & about my past, thus an issue, whereon I'm willing & maybe under obligation, which is just my sense of, what moral is, to let you receive some more info, e.g. that right now my labor situation is, what it doesn't look like: It's terrible for me, the best thing of mine as an honest man to mention it to you, so that I can of course tell & e.g. help us both etc. find out &, whoe-ever's who, our best answers to, - the rest goes without saying, greetings, arentved@in.com. P.S.: The Corrupt still approve of no honesty, so whatever God exists or not, it's not MY opinion that I can fail to become & believe in & so on. My worst scenario is right now everything, I DIDN’T know, DIDN’T think, if I could count on & about my past, thus an issue, whereon I’m willing & maybe under obligation, which is just
my sense of, what moral is, to let you receive some more info, e.g. that right now my labor situation is, what it doesn’t look like: It’s terrible for me, the best thing of mine as an honest man to mention it to you, so that I can of course tell & e.g. help us both etc. find out &, whoe-ever’s who, our best answers to, – the rest goes without saying, greetings, arentved@in.com. P.S.: The Corrupt still approve of no honesty, so whatever God exists or not, it’s not MY opinion that I can fail to become & believe in & so on.

]]> By: Lousy Canuck » Random Crap That’s In My Tabs http://blogs.discovermagazine.com/cosmicvariance/2009/05/14/rules-for-time-travelers/#comment-52374 Lousy Canuck » Random Crap That’s In My Tabs Sun, 26 Jul 2009 18:59:12 +0000 http://blogs.discovermagazine.com/cosmicvariance/2009/05/14/rules-for-time-travelers/#comment-52374 [...] Cosmic Variance, Sean Carroll has an itemized list of rules that every time travel story must follow lest it be internally inconsistent, or violate the rules [...] [...] Cosmic Variance, Sean Carroll has an itemized list of rules that every time travel story must follow lest it be internally inconsistent, or violate the rules [...]

]]> By: fritz freiheit.com blog » Link dump http://blogs.discovermagazine.com/cosmicvariance/2009/05/14/rules-for-time-travelers/#comment-52373 fritz freiheit.com blog » Link dump Fri, 24 Jul 2009 19:44:51 +0000 http://blogs.discovermagazine.com/cosmicvariance/2009/05/14/rules-for-time-travelers/#comment-52373 [...] Rules for Time Travelers | Cosmic Variance | Discover Magazine (TimeTravel,Physics,SF,Writing) [...] [...] Rules for Time Travelers | Cosmic Variance | Discover Magazine (TimeTravel,Physics,SF,Writing) [...]

]]> By: Trivi http://blogs.discovermagazine.com/cosmicvariance/2009/05/14/rules-for-time-travelers/#comment-52372 Trivi Wed, 22 Jul 2009 18:56:08 +0000 http://blogs.discovermagazine.com/cosmicvariance/2009/05/14/rules-for-time-travelers/#comment-52372 Great read! Thanks for the wonderful article. But i have one comment. This is a comment is in response to #9: "Unless you go to a parallel universe" You said... "If you could travel to the past in a different branch of the wave function, then we are allowed to contemplate changing that past in a self-consistent way, because it’s no longer really “your” past". But just because we have landed in the past of a different universe doesn't mean we can alter events of that universe because "whatever done is done" applies to that universe as well. So no matter which universe's past we go to, altering events should be impossible because every universe has its own course of history and changing anyone's history would be impossible. Right? "parallel universe" concept doesn't necessarily give us access to alter events. No matter which universe's past we go to, altering would be impossible. Something will prevent us from altering. This is just a thought. I might be wrong so I am open to suggestions. Thanks for reading. Great read! Thanks for the wonderful article.
But i have one comment.
This is a comment is in response to #9: “Unless you go to a parallel universe”
You said…
“If you could travel to the past in a different branch of the wave function, then we are allowed to contemplate changing that past in a self-consistent way, because it’s no longer really “your” past”.

But just because we have landed in the past of a different universe doesn’t mean we can alter events of that universe because “whatever done is done” applies to that universe as well. So no matter which universe’s past we go to, altering events should be impossible because every universe has its own course of history and changing anyone’s history would be impossible. Right?

“parallel universe” concept doesn’t necessarily give us access to alter events. No matter which universe’s past we go to, altering would be impossible. Something will prevent us from altering. This is just a thought. I might be wrong so I am open to suggestions. Thanks for reading.

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