General Programming / Philosophical Question?

Hello, this may be more of a philosophical question rather than a programming one, but I just began the Code Foundations Pathway and I came across this image:

I think it sums up the strengths and weaknesses of humans and machines pretty well, but I have a question on the second point.

  • What does the image mean when it says computers only have a limited hard-wired knowledge?

  • And what about how humans communicate through inference, what does that mean?