User blog comment:Ralok/new theory/@comment-5259531-20120905181529/@comment-4519149-20120908144840

To answer Western Gen's question about why Sigma made the symbol, he was determining what A.I.s he needed to fuse with to become the Alpha and achieve Metastability which is why he influenced Maine to kill the Freelancers and steal the A.I.s and change his name to "Meta." (He needed Gamma, Delta, Epsilon, Theta, Iota, Xi, Sigma, and Omega.)