The post you replied to was:
> We went from 2 + 7 = 11 to "solved a frontier math problem" in 3 years, yet people don't think this will improve?
All that says is that the speaker thinks models will improve past where they are today. Not that it's a logical certainty (the first thing you jumped on them for), and certainly not anything about "limitless potential for growth" (which nobody even mentioned). With replies like this, invoking fallacies and attacking claims nobody made, you're adding a lot of heat and very little light here (and a few other threads on the page).
Better put than I could have.
> All that says is that the speaker thinks models will improve past where they are today. Not that it's a logical certainty
Exceedingly generous interpretation in my opinion. I tend to interpret rhetorical questions of that form as “it’s so obvious that I shouldn’t even have to ask it”.