So I'm brainstorming a new magic system where each form of magic is specialized yet very versatile; however they require extremely in-depth knowledge on a particular multi-disciplinary branch of science, philosophy, math, arts and what-have-you. I don't really want to go too much into the magic system, because that's not the point of this question and I plan to ask further questions about it later.
- Limited Time Control: allows one to rearrange their own flow through the temporal dimension; requires theoretical physics.
- Hard Light: allows manipulation of light, and can be used to make lightsabers or "teleport"; requires knowledge in physics and photometry.
- Sound Amplifier: allows manipulation and projection of energy as sound, and allows petrification and shattering; requires physics and acoustics.
I'm interested in knowing how many disciplines, including science and languages, a single human could become "fluent" in, such that they have at least a MA, and then a Ph. D. I'd like to know in regards to:
- Pure brain/neurological power.
- How much time, in hours and age, it would take to become fluent in x disciplines.
- Plausibility assuming the person has an average 8-5-ish job with plenty of vacation and sick time and will live to 100.