Jump Scars

Jumpscars are the remnants of when a Jumper teleports.

Life
A jumperscar's life depends on a few variables
 * The skill of the Jumper.
 * The distance of the teleport.
 * The larger/heavier the object the bigger the jumpscar.

Portals
A portal is when an object links two places together. This happens in the Jumper movie when Griffin teleports to tokyo, but leaves the knife to connect the two locations. This way, David can use the Jumpscar when ever he pleased. David closes the Jumpscar by removing the knife and passing through the Jumpscar.

Trivia

 * A jumpscar is first mentioned in the movie when David passes through Griffin's jump scar after the Rome fight with Paladins.