Quantum computing isn’t ever going to deliver the answers they are seeking.
Beyond the theoretical, you’ve got to achieve the ability physically explore space down to the molecular, atomic and subatomic levels, then down far beyond to the point where space expands again into the next dimension.
Parallel universes/realities do exist all simultaneously at the same TIME. And occasionally converge, interact in mostly imperceptible ways.
The bridge between realities is incomprehensibly small. And yet as vast as the empty space within an atom.
We are more than 200 years away from real discoveries in these areas, and more importantly in TIME itself.