I imagine some of the different knowledge came from seperate planes of existence and were taken into the main world. he may need to watch his own development even more carefully just in case.
I liked this part a lot, it seems like the author has a plan to flesh out the other planes instead of leaving it as a one dimensional thing for the mc to grow stronger. Maybe it can even be compared to CoS
With how vast and innumerable the universe and its planes are, it's not surprising that there seems to be an infinite number of powers and abilities.
Aside from martial arts based Supers knowledge, I wonder what other courses he'll decide to take.
Thanks for the chapter!