5 ms·
> Elon in 2028: “time machine!” Well, to be fair, he only has to hit _that_ goal - at which point he can go back in time at his leisure and fix all the others.
by gruturo 4y ago
> Elon in 2028: “time machine!”
Well, to be fair, he only has to hit _that_ goal - at which point he can go back in time at his leisure and fix all the others. And he could hit even the time machine goal as late as he wants, and it won't matter.
- aidenn0 4y agoThis sounds like solid evidence for the fact that he won't ever get his hands on a time machine.
- sdenton4 4y agoOr it'll be like the time machine in Primer, where you can't go back before the time machine was turned on.
- mstipetic 4y agoThat kinda only works if we’re the only civilization in the universe, right? What if some other civilization discovered it a long time ago?
- sebzim4500 4y agoThen they might have been using it this whole time. If they kept to themselves we would have no idea.
- sdenton4 4y agoSomething something 'light cone.' If the machine was turned on a million years ago in another star system and then brought to Earth, the Primer model would put you in the other star system when you climb out of the machine. And then you'd need to make your way back to Earth. (It's unclear to me whether you would continue aging while sitting in the box and waiting for a million years to go by in reverse... But I assume you would.) So I think the 'other civilization' thing only works if they're already approximately here with a running machine.
- deleted 4y ago[deleted]
- andsoitis 4y agoI think we can tell for certain that time travel will never be invented because if it were to happen, then logically we’d already be experiencing people visiting us from the future.
- dron57 4y agoSince this is HN and we're playing the tbf game... To be fair he'd only have to hit the FTL goal and then FTL can be used as a time machine.
- gruturo 4y agoOh, good point!