118 points

There’s an innumerable number of reasons no one showed up, only one of which is that backwards time travel isn’t possible.

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92 points

One of which is that Stephen Hawking threw a lousy party.

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25 points

The other one is that most people haven’t herd of it, so I doubt the knowledge of this party will travel that far into the future.

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45 points

Someone who put work and effort into developing time travel will have heard of it. Unless it happened after a complete destruction and rebuild of civilization or two.

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23 points

Take that back!!

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26 points

We’re in one of the unlucky few possible resulting timelines in which no one showed. My friend from timeline 3f-1933847.12b told me that their party is still going. Every few hours more travelers turn up with a fresh keg, and whatever their generation’s party drug is.

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15 points

It’s by far the most plausible but sure, if you ignore Ockham’s razor, sure, it’s only one of many explanations

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6 points

More plausible than there being rules around time travel that involve not attending parties? I think not.

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5 points

One such possibility is that you can only travel to times where the device you’re using to do so exists.

More like a time gate than an H.G. Wells-style machine, but still a workable model.

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4 points

Tbf the important question is: assuming that backwards time travel is possible, will people attempt to the party. And there I would say, unlikely. And while I think backwards time travel is very implausible, the experiment itself proves nothing

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8 points

Maybe future people knew about his supposed ties to Epstein and didn’t want to show up…

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2 points

Exactly, they’d know a lot more accurately what happened too, which raises another point as to why no one comes back here - imagine gong somewhere that you know horrible things are happening to children but you can’t say anything or save them because of the timeline…

Even if in the unlikely event Hawking didn’t know about it talking to him and not saying ‘that friend of yours epstine is a bad dude’ would be unbearable.

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4 points

For example maybe you need a working time machine at your destination, such that the earliest point possible to travel to is the moment the first time machine was switched on.

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3 points

One of them that no one made a backup of the past.

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2 points

News of his attendance at someone else’s party made all future time travelers give him a wide berth.

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2 points

I mean, maybe people did show up. Maybe he never told anyone else due to the implications.

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69 points

Can you imagine if someone showed up and his party became ground zero for a worldwide pandemic of future diseases for which we don’t have cures yet?

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63 points
*

Hawking gets a Covid sample from a time traveler in 2009 and immediately travels to the Wuhan lab to study it and look for a cure, he successfully delays the pandemic and he almost gets to a cure but a bad guy time traveler comes to kill him in 2018 and without the watchful eye of Stephen Hawking, the world falls to chaos.

I’d watch that movie.

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20 points

The bad guy would have to be the Mr Glass guy from Unbreakable, or otherwise the chase scenes would be really really short.

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5 points

Hahahahaha oh man I’m going to hell for laughing at this.

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5 points

Rocket wheelchair.

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5 points

Nice work there.

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4 points

It’s missing Harambe somewhere, but great so far

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63 points

They want you to believe that nobody showed up.

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21 points

They did not, bc the real party was somewhen else entirely…

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13 points

And by They, you of course mean The Globetrotters, formerly of Harlem

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50 points

Hawking concluded it is impossible because nobody showed up to his party. Zero thought was spent wondering if it was a party worth showing up to.

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26 points

Yeah, now that I think of it more, I can’t see a single good reason for a time traveler to show up at this party. Going back in time to prove the existence of time travel to the past has a very good chance of handing control of time travel away to people who can undo your existence without you ever being aware of it.

Even if you just wanted a conversation with one of the brilliant minds in physics, it would be smarter to pick a random lecture or non-time-travel-themed party.

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13 points

Yes, or someone did show up despite knowing the risks because they trusted Hawking to understand the dangers of revealing the secret of time travel and not sharing it with any living soul. If time travel were to ever become possible and somewhat commonplace then the chances are probably close to zero that everybody chooses not to attend this party (assuming the invitation remains famous for long enough). Perhaps the party was crowded with people thinking the same way.

It’s much more likely that it all just played out exactly the way Hawking said it did, of course. But it’s a fun thought experiment to play around with.

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6 points

That assumes time-travelers are smart. Never a safe assumption to make.

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3 points

Good point. Just look at sovereign citizens. They travel all the time.

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39 points

Correct me if I’m wrong:

I live in a timeline where time travel has not yet been invented. Even if someone invents it in the future and travels to the past to the party, that’d create an alternate timeline where the party is attended and civilization leaps bounds ahead in glorious post-scarcity, magical socialism fashion.

But nooooo since the timeline was forked at that point, no matter how many people do, in fact, attend the party, I’m stuck in the “strand” of the timeline when no one ever did because time travel has not been invented.

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21 points

There’s different ideas on how time travel “could” work and one of them is the timeline-split notion upon which you base your idea. In that vain it’s solid.

Other ideas are that time travel always results in a loop or that its perhaps only possible under very specific circumstances (ie you can’t pick an arbitrary location or time to travel to nor to travel from).

My hunch is that even if time travel were possible there’s simply no practical experiment to tell whether you are in a split timeline (and if so how it differs from others), aka it’s outside of the realm of scientific // logical inquiry.

If y’all like exploration of time travel go watch the show Travelers some time. It has some interesting premises in that regard.

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There is also the Paycheck method. There is no travel you can only observe by looking through a special “time telescope.” Maybe plenty of people observed the party, they just weren’t able to physically attend.

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2 points

First I ever hear of the Paycheck method honestly, at least under that name. Reminds me of a short story about the government keeping a secret “chronoscope” machine and the efforts of the MC to democratize that knowledge.

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2 points

There is also the harry potter version, any time travel is woven into the only timeline. The past is “edited” to always have included the events time travel.

This can be considered similar to the branching method; where the original branch without the events of the time travel simply ends; only the “new” branch continues.

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12 points

However, IF, your theory is accurate, then you are the prime instance of you. All time travel alternatives are just YOU in another scenario, not different versions of each other, they are all YOU.

That’s got to be worth something. 🤷🏻‍♂️

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2 points

It’s worth something to this me! Who so far is the Prime Me!

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8 points

Eh, that’s more science fiction than actual theory.

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5 points

Depends on how you see it. It could also be that for some reason or another even with backwards time travel no one shows up. And thus you avoid having a paradox

Or it could be like a time portal so once you build one you an travel back to any point it existed in but one to a point where it doesn’t exist since you need time travel infrastructure

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5 points

Or the technology for invisibility arrives before time travel so they were there, just undetected. Absence of evidence is not evidence of absence.

rips bong

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2 points

I mean, that for the most part makes sense. Although in that case, wouldn’t it have been reported that “no one attended the party but the food and the snacks were somehow missing”?

That said. Unsure how exactly it went but I read somewhere that if you had the power of True Invisibility, that is being undetectable at any wavelength of light, then you’d basically be able to simulate negative mass, and from there to “time travel” it’s kind of a straight line.

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3 points

Bummer, I haven’t felt this sad since learning about thermodynamics.

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3 points

Damn rules of thermodynamics!

you can’t win

you can’t tie

you can’t quit the game

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