Rules:
*You can teleport into and out of it at will
*It has a couple of plug sockets and can connect to internet from the region you teleported in from
*You can take objects and people with you
*As already stated, it is (3m)^3 (3m*3m*3m). The walls are plain plaster with a light in the middle of the ceiling. The pocket dimension is topologically toroidal, so if there weren’t walls and a ceiling/floor (which you can actually destroy) you would loop if you went more than 3m in any direction. Gravity, then, is artificial and can be altered to anywhere from 0 to 2g from a dial on the wall.
Edit: additional specifications
*You can only teleport out to where you teleported in from.
*Time proceeds at the same rate inside the pocket dimension
*There is an eject button for those inside to get out if something happens to you
But you can’t teleport out somewhere other than where you teleported it in. Your road rage fantasy wouldn’t play out in your favor. You could fill the pocket dimension up overnight by teleporting in water from the bathtub faucet, and you could take a swim in it whenever you want to (and presumably teleport out completely dry since you and your clothes teleported in from different places). But when you teleport it out while on the highway, you’d just end up releasing 4,000 gallons of water into your bathroom at home where you teleported it in.
On a scary note, if you were to enter the pocket dimension while it was filled with water from another location, I would strongly recommend against drinking any of it, given the potentially fatal consequences of teleporting back out…
I think you misunderstood something.
Yes, so it’s not a transportation device. It does carry stuff with it. So you can put something in it at home, and take it out at work, or wherever.
It’s not a transportation device, but I can put people in it one place and take them out at another? Does everyone/everything else follow a different set of rules than me, owner of the pocket dimension?
People can’t, including you, but things can be moved. You can put you laptop in there, then take it out at work. At least that’s how I interpreted the rule.