Maxwell's equations are linear, so probably not complicated enough to support the idea that they can generate human-like actions before they interact with matter.
As far as I understand, there is no 'closed form solution' for the initial value problem of Maxwell's equations, despite them being linear?
So I'm not sure it's correct to say that "linearity ~ simplicity" in PDE theory. My understanding is the correct analog of "linear" in PDEs is "elliptic" [which is more akin to 'operator with full spectrum'], which Maxwell's equations are not?