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#paradoxes

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#Thought #Experiment: What-if multiple stars are the same #star in different #times?

Disregarding our familiar #paradoxes for a moment, if Time Travel is possible, then mightn't it occur in #Nature? And if-then, how could one know? What evidence should we be looking for? Something duplicated: #stars, #galaxies, #quanta, #identicaltwins, #groundhogday, #Castor & #Pollux. 🌠🌠

🔗 Wikipedia.org/wiki/Castor_and_
🔗 Wikipedia.org/wiki/Castor_(sta
🔗 Wikipedia.org/wiki/Pollux_(sta

Another week, another jam - I am working on big serious projects too, I swear. In the meantime I joined #EducationalJam on @itchio with more #paradoxes, wrestling #Twine some more; after #TriJam 296 (placing 9th of 14 entries; for being the only one without cat content for the theme #SchrödingersCat I think I did okay ;): "Arent't too many games like that around" was a great compliment by the host, imo).

Could #Tachyons Exist? Breaking the #SpeedOfLight

❛❛ a popular notion floated around by proponents of Tachyons is that Tachyons could be used to transmit #signals back in time, which opens up the door to some interesting #paradoxes. ❜❜

🔗 youtube.com/watch?v=Eu1a9zXysw 2023 May 21
🔗 Wikipedia.org/wiki/Tachyon
🔗 Wikipedia.org/wiki/Gerald_Fein

Can We Go Back in Time [ie, Retrograde] Using a #SpaceTime #Machine?

10 minutes of Neil deGrasse Tyson & some sophisticated animations depicting the possibilities, problems & #paradoxes of #TimeTravel.

🔗 youtube.com/watch?v=yI9IL9pNcp 10 Dec 2022
🔗 en.wikipedia.org/wiki/Neil_deG

The #Krononaut #Moon Project celebrates Time Travel on the Night of the Total Lunar Eclipse, coming our way twice in 2025 — on Mar 14 & on Sep 07.

The Time Traveler's Wife

Clip from the thought provoking and romantic movie from 2009 based on Audrey Niffeneggar's 2003 novel. Henry (Eric Bana) meets Claire (Rachel McAdams) and she decides to stay with him, despite his random disappearances & reappearances.

🔗 youtube.com/watch?v=BdC4os4SOH
🔗 en.wikipedia.org/wiki/The_Time

 
"Is Time Travel Possible in our #Universe?"

One of the better explainers we've seen on #TimeTravel's mainstream #scientific & #philosophical promises & problems, for ordinary #Earthlings (despite a couple #ads). In the first 4 mins we are introduced to 5 classic #Paradoxes: The #Bootstrap, #Restoration, #ExNihilo, #Predestination & #Autoinfanticide, with everyone's famous #Grandfather showing up later. #Krono-recommended!

🔗 youtube.com/watch?v=JXZpac6TRE

"Is Time Travel, Especially Into the Past, Possible?"
#experimental #astroparticle #physicist Matt Szydagis speaking at #TEDx #Schenectady #NY #US

Discussing a range of possibilities & problems of #TimeTravel, emphasizing the #paradoxes, #Einstein, and #quantummechanics. No mention of #entanglement. Agrees that our understanding should include #subatomic particles as #message carriers.

🔗 youtube.com/watch?v=m2-I5HUwfR 16 Jan 2018

 
"Why Time Travel is Impossible"
by RealLifeLore

Presents brief descriptions of the classic #Grandfather & #Bootstrap #Paradoxes.
Such #thoughtexperiments give rise to apparently illogical scenarios, including the #HitlerParadox, also mentioned. Although, none absolutely nullifies all possibility of #interdimensional transport. #Video is ~ 7 mins long with a sponsored ad beginning at ~ 6 mins (and 12k+ comments!)

🔗 youtube.com/watch?v=HcYQU9JOVh

Gray's paradox (Zoology 🦥)

Gray's Paradox is a paradox posed in 1936 by British zoologist Sir James Gray. The paradox was to figure out how dolphins can obtain such high speeds and accelerations with what appears to be a small muscle mass. Gray made an estimate of the power a dolphin could exert based on its physiology, and concluded the power was insufficient to overcome the drag forces...

en.wikipedia.org/wiki/Gray's_p

Arrow's impossibility theorem

Arrow's impossibility theorem, the general possibility theorem or Arrow's paradox is an impossibility theorem in social choice theory that states that when voters have three or more distinct alternatives (options), no ranked voting electoral system can convert the ranked preferences…

en.m.wikipedia.org/wiki/Arrow%

en.m.wikipedia.orgArrow's impossibility theorem - Wikipedia