If you mean the paper saying it can’t be a simulation because the universe has true randomness, which can’t be created in software: we ourselves do in fact have true randomness in software, by capturing it from the environment via hardware sensors for fluctuations in temperature and such.
If you mean the paper saying it can’t be a simulation because the universe has true randomness, which can’t be created in software: we ourselves do in fact have true randomness in software, by capturing it from the environment via hardware sensors for fluctuations in temperature and such.