Quantum mechanics forces you to reassess what you think space and time are. We know information is something physical, but then we get told that quantum states don't need to be (considered to be physical objects). This is as if they have more degrees of freedom than classical information does in 3 + 1 dimensions, which are the only ones we can observe in. So, you could consider quantum computers are exploiting these "hidden" dimensions; you could also consider that the quantum domain is where space and time come from. We take for granted that we can collect scattering data and put it all in the same frame, but doing something like that seems to mean a whole lot more--we ignore it because we're evolved to think classically. For instance, the two-slit apparatus: does this encode particles with "position information" in 3 + 1 dimensions, or does it encode space and time, and if so, in what physical basis?