This reminds me of the time on a field trip in a hilly campus when I seized the opportunity to roll down a sweet hill and then I was going too fast and couldn't stop myself until it leveled out a hundred feet away and when I got up my classmates were gone because they left me
this post was submitted on 14 Jan 2026
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No one? Ok then,
“Now you’re thinking with portals!”
^--- Comment sponsored by Aperture Science
There is a guy on YouTube that simulates portals using real physics and science stuff, turns out that if you model the gravity on all sides of the portal it balances out and you would stop right in the middle of the two portals at least if they were perfectly over each other in a case like this you would stop somewhere in the middle of the slide because the gravity would travel between both portals
Didn't one of his other videos conclude with something about an object falling infinitely though portals causes them to accumulate opposing positive and negative masses and eventually turn into a black hole?
Not as far as I've seen, it's possible he did more simulations but in the type he was doing infinite falling didn't happen or I think technically it did once until he turned on air resistance.
The gravity is going down parallel to the portal opening though, so both portals have the same gravity direction, the only thing speeding you up is the slide
That's not how it works, when you actually simulate it it doesn't violate the laws of thermodynamics, the gravity would be bending outside of the portal so that it would be pulling up from the portal on the top, you should watch the video it is really technical but it explains almost every question you could ask about portals (except when it gets to relativity) because it is an actual simulation of gravity, and if that isn't enough he has an entire series, 3 portals? Portal inside of Portal? Portal moving onto a cube? Literally all of it and more.
Well thank god a magic portal doesn't violate the laws of thermodynamics, I was getting worried about science for a while there
Magic portals are one option but portals are actually completely allowed in relativity they probably don't exist but my point is you can make physically consistent portals that actually have laws they obey.
the fact that would violate the laws of thermodynamics (infinite energy) is a pretty good indication that's wrong.
Portals already violate the laws of thermodynamics. We’re arguing about whether gravity would work here.
Imagine how awesome ziplining would be.
Your portals would have to be extremely precise, otherwise you're free falling on the second run.
Now skydiving - hell yeah.
why he walking home?
He's strange.
Maybe. Who am I to judge?
🤯
exercise
you need more effort than that to call it exercise
Not in old age.
Am almost 40, can confirm.
Friction. The friction on his arse must be quite...mmmm, delicious.
Dr. Hotpants
How fast would he become?
- Maybe 3?
Economy so bad people are using propreitery units.