Which leads us to question; Why refraction?
Refraction occurs because ψ deform first in the direction perpendicular to the medium on impact at the point of incidence.
Why dispersion?
Dispersion occurs when part of the work imparted on ψ upon collision at the medium boundary remains with ψ on exit from the medium. When all such work is remove from ψ when the exit boundary is a reciprocal of the incident boundary, ie the boundaries are parallel, dispersion do not occur.
By symmetry, optimum dispersion occurs when the exit boundary is perpendicular to the incident boundary.
Yes, I will now start my own religion too.
