You didn’t respond to his point:
In the 40k universe, modern humanity is below not just their peak of technological prowess, but even their peak of pre-AI prowess. Because they landed in a valley of superstition involving machines they do not understand — and have no way to rebuild towards their peak, without yet further losses by moving away from the magical machines.
That has nothing to do with the universe at large — and everything to do with human society and choices. Which we do have control over.
I’m familiar with 40K, I played Laserburn back in the 80s. I met Bryan Ansel before 40K existed.
The comment I replied to equivocated between absolute limits to comprehensibility to humans and sociologically constructed limits, implying that thinking there may be the former makes someone ‘fine with’ the latter. That’s nonsense.