User blog comment:Nobody700/How is he so strong?/@comment-21119641-20151125170208

I think that maybe Saitama is some kind of Mysterious Being. People are seemingly turned by "GOD" into a M.B. whenever they get like too obsessed with something, no?

Crabrante was born because a man ate too much crabs, for example. Garou became much stronger due to his obsession with evil. Sweet Mask is seemingly beginning to transform due to his big obsession with beauty and such.

Saitama had obsession with training, no? Or was it something else? In the end, I think it has something to do with this. But he didn't become evil cuz he got no evil intentions on that mind of his, so probaly that's why he got no transformation.

Dr. Genus also spoke of something about Saitama breaking his limiter...or something like that, maybe his transformation into a M.B had something to do with it. Maybe that lady's prophecy was not about Boros nor Garou, maybe it was about Saitama.

Just theories! But yeah...