Board Thread:Questions and Answers/@comment-67.85.232.219-20190723231118/@comment-34962159-20190820090343

It's probably a reference to his ability. According to the Terminology section of the "Accelerator (ability)" page, it may be a reference to how particle accelerators are used to study the truth of the universe (just as Accelerator's ability can be used for this purpose), or to how the ability can be used to accelerate objects in a literal sense.