Mathematics is also mysticism. 1 is arbitrary. The senses can never perceive 1. So it is self-contained. There is no time without perception, and no perception without division. Consciousness perpetuates itself, but it has no reach outside its self-generated paradigm. Time is created by the witness, and the witness is time. It's a circle the mind cannot escape. If there is such a thing as a quantum computer, the mind cannot comprehend its output. Your hashes won't be broken.
This kind of ties into my more general hypothesis that the universe is a single mathematical structure. And that all possible mathematical structures are as real as ours. But only some structures have conscious components within them (e.g. us) who can observe.
This does run into a wall with the Hard Problem of Consciousness. It's hard to imagine how a mathematical structure can produce self-awareness. But any alternate explanation is just as magical.