I wish. If I could have a superpower, it’d be to be able to travel back and fix a few things.
And if I could have had a superpower a few decades ago? It’d be to be able to take age/ disease from loved ones, and transfer it to more deserving people.
I go to bed at nine at night. The next thing I know it’s 6am. What other explanation could there be?
Just like stepping outside and seeing the unbending horizon of our beautiful flat earth.
You just can’t question things you experience firsthand.
I recall reading some papers that calculated that time travel (and several related things to do with escaping your light cone and returning to similar times, closed time-like curves, etc.) would be at least plausible, but required energy on the level that made supernovae and quasars look trivial. So, a minimum Kardashev III achievement, if the calculations hold, but we also know that we are missing at least one or two fundamental pieces of how the universe works (getting gravity and quantum mechanics to play together would immediately bump a lot of other deserving people down the list for several nontrivial prizes, for instance) and if we are missing more than we expect (which is almost certainly true) there may be something that would make time or at least space travel more feasible.
Time travel would break the laws of thermodynamics as we know it (it would create more mass and energy at the destination time)… unless it also sucked mass and energy back to where it originated.
Also, the whole universe is constantly moving. If you travelled forward or backwards in time a day- you would be millions of miles away from the earth.
The whole “location” problem with time travel probably means that even if backwards time travel is possible, it would require a machine as the fixed loci- so we will never be able to travel backwards in history before the time machine was invented.
I think more likely than time travel is the ability to “view” the past without actually going to it. A powerful enough computer might theoretically be able to predict what happened in a location in the past by looking at it now.
@OnionSoup The concept of a black hole through time is not inconceivable. It wouldn’t be very useful since it is essentially a high powered blender for objects (like humans) who get pulped, sent somewhere faster then the speed of light (because light no longer exists), and from that somewhere, at some different time, exist in another state.
Also technically any teleportation or space warp or wormhole could be time travel in the sense of a time jump (forward). Like sleep.
TV series Fringe dealt with time travel in two ways: 1.) alternate universe is at a different “sync” (e.g. the Julian calendar and everything afterwards was invented exactly a century later; natural occurrences in the alternate universe like the Grand Canyon or Great Blue Hole would be measured as exactly a century older compared to ours; Sliders did a similar plot device), 2.) the past would have a gaping crater the size of whatever was sent back (Terminator style)
Doing it now.
no
No
/showme is time travel possible
I wish. If I could have a superpower, it’d be to be able to travel back and fix a few things.
And if I could have had a superpower a few decades ago? It’d be to be able to take age/ disease from loved ones, and transfer it to more deserving people.
/showme is time travel possible?
/showme is time travel possible!
/showme is time, travel possible?
@haydesigner Apparently time travel is possible, according to mediocrebot. Maybe they know something we don’t?
@haydesigner @heartny that’s where the bots came from.
/showme the quantum entanglements of time travel
/showme impossible time travel
/showme time travel while shopping online
@mediocrebot What, no Bluetooth devices?
@heartny @mediocrebot I like that it’s getting better about the correct number of legs and fingers. Still creepily-long fingers, though.
But what the heck is on the open page of the book on the table?
Ask me this again yesterday.
@OnionSoup I already did.
I go to bed at nine at night. The next thing I know it’s 6am. What other explanation could there be?
Just like stepping outside and seeing the unbending horizon of our beautiful flat earth.
You just can’t question things you experience firsthand.
@tweezak
I recall reading some papers that calculated that time travel (and several related things to do with escaping your light cone and returning to similar times, closed time-like curves, etc.) would be at least plausible, but required energy on the level that made supernovae and quasars look trivial. So, a minimum Kardashev III achievement, if the calculations hold, but we also know that we are missing at least one or two fundamental pieces of how the universe works (getting gravity and quantum mechanics to play together would immediately bump a lot of other deserving people down the list for several nontrivial prizes, for instance) and if we are missing more than we expect (which is almost certainly true) there may be something that would make time or at least space travel more feasible.
@jsfs Naw, we all know it only takes 1.21 gigawatts.
@jsfs No worries, Wesley Crusher figured it out years ago. Or was that years in the future?
“Jigawatts?”
@pakopako @xobzoo The root word for the giga- prefix is gigantic, so pronouncing it “Jigawatts” actually makes more sense. (IMHO)
/showme time traveling cats playing pianos
/showme the equations needed for time travel
Okay, now all we need to do is figure out how to make sense of those.
Or have someone commit to bringing us the interpretation back to our current time…
Time travel would break the laws of thermodynamics as we know it (it would create more mass and energy at the destination time)… unless it also sucked mass and energy back to where it originated.
Also, the whole universe is constantly moving. If you travelled forward or backwards in time a day- you would be millions of miles away from the earth.
The whole “location” problem with time travel probably means that even if backwards time travel is possible, it would require a machine as the fixed loci- so we will never be able to travel backwards in history before the time machine was invented.
I think more likely than time travel is the ability to “view” the past without actually going to it. A powerful enough computer might theoretically be able to predict what happened in a location in the past by looking at it now.
@OnionSoup The concept of a black hole through time is not inconceivable. It wouldn’t be very useful since it is essentially a high powered blender for objects (like humans) who get pulped, sent somewhere faster then the speed of light (because light no longer exists), and from that somewhere, at some different time, exist in another state.
Also technically any teleportation or space warp or wormhole could be time travel in the sense of a time jump (forward). Like sleep.
TV series Fringe dealt with time travel in two ways: 1.) alternate universe is at a different “sync” (e.g. the Julian calendar and everything afterwards was invented exactly a century later; natural occurrences in the alternate universe like the Grand Canyon or Great Blue Hole would be measured as exactly a century older compared to ours; Sliders did a similar plot device), 2.) the past would have a gaping crater the size of whatever was sent back (Terminator style)
funny, i just watched “12 monkeys” last night
‘Yesterday shipping’ from Amazon seems plausible in their quest for quicker deliveries. If anyone can figure time travel out, it’ll be Bezos.
