QCD's strong coupling makes it hard to imagine how one could create programs for quarks with bounded errors. The linked article seems to suggest using gluons/i

QCD's strong coupling makes it hard to imagine how one could create programs for quarks with bounded errors. The linked article seems to suggest using gluons/interactions as gates for the colors on the quarks. This is so totally bonkers it is hard to know where to start, but perhaps an easy place is: how would you go about isolating a single quark and a single gluon in the horrible nonperturbative mess that is the QCD vacuum[0]. If you want to program the nucleons in the nucleus, you can switch your description to chiral perturbation theory[1], which is weakly coupled, but you need to be able to shoot individual pions at individual nuclei, which would be extremely difficult, and might require enough energy to liberate the target nucleon from the rest of the nucleus, anyway, destroying your "computer". [0] https://en.wikipedia.org/wiki/QCD_vacuum https://en.wikipedia.org/wiki/QCD_vacuum [1] https://en.wikipedia.org/wiki/Chiral_perturbation_theory https://en.wikipedia.org/wiki/Chiral_perturbation_theory