> Alternatively, in order to not be contradictory doesn't it require the assumption that humans are not "algorithmic"? But does that not then presuppose (as the above commenter brought up) that we are not a biochemical machine? Is a machine not inherently algorithmic in nature?
No, computation is algorithmic, real machines are not necessarily (of course, AGI still can't be ruled out even if algorithmic intelligence is, only AGI that does not incorporate some component with noncomputable behavior.)
> computation is algorithmic, real machines are not necessarily
Author seems to assume the latter condition is definitive, i.e. that real machines are not, and then derive extrapolations from that unproven assumption.
> No, computation is algorithmic, real machines are not necessarily
As the adjacent comment touches on are the laws of physics (as understood to date) not possible to simulate? Can't all possible machines be simulated at least in theory? I'm guessing my knowledge of the term "algorithmic" is lacking here.
Using computation/algorithmic methods we can simulate nonalgorithmic systems. So the world within a computer program can behave in a nonalgorithmic way.
Also, one might argue that universe/laws of physics are computational.