Sigma’s theory of this technique, came from Shingi, a successor of space-time ninjutsu. It wasn’t until he met with Deismun of the Kazami, he was actually able to negate that of logic, precede past space and time, and ultimately destroy the barriers. After training, for hours, Sigma was able to complete “reverse” time. This technique was created is to give Sigma a second chance at his mistakes.