The series was very thought provoking. I believe the writers attempted to take on determinism vs free will, the theory of one universe vs a multiverse, and second sight.
The protagonist takes on the role of an arbitrator of these current human conundrums. As a viewer (spectator) we enter the realm of this discussion as he attempts to reach a satisfactory personal outcome.
The realm being an electrified state of a human mind seeking to understand a glimpse of the multiverse (second sight). Where every choice a human makes generates a universe consistent with that choice. The visions (sight) not being limited by the narrow constraints of the "in the present first sight" of the electromagnetic spectrum.
In the multiverse where every choice (or one wrong note) propels us into unforeseen possibilities or a deterministic path? The protagonist's must journey through a branching realm piecing fragments of visions together like solving a puzzle. He must puzzle out the branching by discovering how the choices of the others determine his choices. He must work out lies, half truths, and the agenda of an unknown antagonists.
His/our understanding concludes that thoughtful deliberation of our choices will improve our universe.
I felt the protagonist and supporting actors that had a significant role were spot on in their characterizations. The production and performances deserves an Emmy nomination.
