Magic may well have been real. Healing crystals, shamanry, witchcraft, voodoo, things of this nature may have been real at one point and have since been patched out. These could have simply been glitches in the program.
We’ve all heard of glitches in games that can be exploited that eventually get patched. Could have been real.
Glitches usually don’t accidentally cause entire “features” to emerge.
arbitrary code execution vulnerabilities
bugfeatureI have seen glitches in games where 2 objects get the same ID and doing something to one would also do something to another