If memory serves me correctly I think they did most of the modelling actually simulating the quantum computer on a classical computer, then when they found a ru

If memory serves me correctly I think they did most of the modelling actually simulating the quantum computer on a classical computer, then when they found a run that "worked" and gave parameters they wanted to see they reran that run on the quantum computer. The reason they wanted to do that step of the simulation on the quantum computer is that they were arguing that the waveforms of the quantum computer created the dual of the wormhole when running the emulation and therefore the actual wormhole existed. I might be unintentionally strawmanning their argument because I have never studied QM and that specific part of the claim was the bit that was very contentious at the time and they sort of rowed back from.