Akshually, spice, combined with genetic engineering like Paul's, is merely a nootropic which allows an overclocking of brainpower to the point where one knows h

Akshually, spice, combined with genetic engineering like Paul's, is merely a nootropic which allows an overclocking of brainpower to the point where one knows how to shine light on the holographic universe's underlying 2D plane, changing qubits so as to effect 3D spacetime curvature allowing FTL travel (navigators) as well as how to code inject brains by adding certain inflections to your words (the voice) as well as calculate the branching paths of reality and probabilities thereof (seeing the future). No magic involved. Shields though? No fucking idea. Okay, nevermind; it's soft sci-fi.