Board Thread:Questions and Answers/@comment-4441317-20161222203956/@comment-61022-20161229204217

You are probably referring to New Son who claims to be the Gambit of Earth-9912. However, the two men have vastly different origins and histories and different names (New Sun's is unrevealed) we're basing the idea that they're the same guy based on the testimony of New Sun himself and Mr. Sinister (neither of which could be considered credible sources, especially the latter since manipulation is his game)

As for your question can kinetic energy allow someone to travel interdimensionally... In the world of comic book science fiction anything could really, but getting down to brass tacks: Kinetic energy is the energy expended when an object moves. Kinetic energy has always been an interdimensional MacGuffin since the early Flash stories DC published in the late 50s and early 60s. Really it depends on the physical properties of a given universe but for most comic book universes some manipulation of kinetics can breech the walls between one dimension and the other. The Flash, as an example again, could do it just by vibrating at a certain speed and a certain pitch.