Teleport

Teleport...ation is how to get from point A to point B immediately.

Teleportation is possible real-world with subatomic particles in the quantum world; it's kind of how semiconductors work, so transistors like the ones in the computer you're probably reading this article on. As for anything bigger, that's been a mainstay of science-fiction and fantasy since the start.

Problems accrue if you get your teleportation end co-ordinates slightly wrong and you end up five hundred feet in the air or inside a cliff. Or, if you share your teleportation start area with a fly.

In gaming

In Dungeons & Dragons this is a spell. Low-level versions might include Blink, where the teleportation only gets you or your dog a few feet away. Teleport is often fifth-level or higher given its ability to fuck with a linear plot.

Although: the DM is well in his rights to rule that Teleport does not work everywhere. Nobody wants a crew of illithids 'porting into the council-chamber with their pet tarrasque and 'porting out again sans monster. If this spell is readily available, reasonably-intelligent and powerful civilisations will be aware of it and will take steps against it. An excellent example is D1-2-3: Drow Trilogy: the drow simply set up their Vault down where Teleport barely works. Other magical wards (aboleth are handy with glyphs) will be set up in similarly-sensitive regions.