I skimmed the paper so might have missed something, but iiuc there is no algorithm used for comparison. They did not run some well defined algorithm on some ben

I skimmed the paper so might have missed something, but iiuc there is no algorithm used for comparison. They did not run some well defined algorithm on some benchmark instances, they estimated the cost of simulating the circuits "through tensor network contraction" - I quote here not to scare but because this is where my expertise runs out.