You're rather dramatically demonstrating how remarkable the progress has been: GPT-3 was horrible at coding. Claude Opus 4.5 is good at it.
They're already far faster than anybody on HN could ever be. Whether it takes another five years or ten, in that span of time nobody on HN will be able to keep up with the top tier models. It's not irrational, it's guaranteed. The progress has been extraordinary and obvious, the direction is certain, the outcome is certain. All that is left is to debate whether it's a couple of years or closer to a decade.
And there's the same empty headed certainty, extrapolating a sigmoid into an exponential.
People claimed GPT-3 was great at coding when it launched. Those who said otherwise were dismissed. That has continued to be the case in every generation.
Why is the outcome certain? We have no way of predicting how long models will continue getting better before they plateau.