Spiritual computers may be able to sustain infinite universes.

Infinite really means finite.  However, even though the physics could be covered, a computer couldn't compute entire universes.  If it was done using idealism, i.e. if machine learning and appearances to consciousness were rendered this would present problems in detecting watching.  Maybe mind reading could help.  How would we render appearances without computing the whole model?  At the start, the overbearing objection seemed to be delivering knowledge or appearances based on sciences unknown to us using the physics model.