https://wtamu.edu/~cbaird/sq/2014/08/21/what-is-the-strongest-magnetic-field-possible-is-there-a-limit/

There is so much interesting information here, and theoretical unknowns.

Seems like extremely high magnetic field behavior is a fairly open wild west for thought research.
Just wanted to share what I was reading, since the questions and unknowns involved are very thought provoking.