Part of why I was interested in the idea is that it seems like what's being done in the article deals with vastly smaller numbers of molecules than what traditi

Part of why I was interested in the idea is that it seems like what's being done in the article deals with vastly smaller numbers of molecules than what traditional chemical simulations would be targeted at. Some of the discussed 'machines' are comprised of just a few molecules, and I imagine the more complex ones are still under 1000. So as long as the software was specialized for this application, it seems like it would be feasible on classical computers.