Lo-fi and the democratization of recording
Math rock and the way it creates a sense of arrival at unexpected moments is one of its most powerful emotional tools.
In conventional rock, the arrival — the chorus, the climax, the resolution — comes where you expect it. The formal conventions are so well-established that you can feel where the next arrival should be before it happens. Math rock undermines this expectation and then uses it against you.
When a math rock track creates a genuine rhythmic or harmonic resolution, it hits harder than a conventional rock climax because you didn't see it coming. The odd meter means you're not quite sure where the next downbeat should be, so when the music resolves, the resolution is both surprising and exactly right.
This is the emotional payoff that rewards the time investment in learning to hear the music. The pleasure of rhythmic surprise requires enough familiarity with the genre's vocabulary to recognize when something is resolving versus when it's continuing to develop.