It's a self-evident truth. Even if today, at this very moment AI hits a hard plateau and there's nothing we can do to make AI better, ever, then this still holds true. It simply means we'll keep what we have right now. Any new model will be a step back and thus be discarded. So what we have today is the worst, and the best it will ever be. But barring that extremely unlikely scenario, like GPT-3 to GPT-4 and Claude 3 to Claude 4, we will see improvements (either incremental or abrupt) over the coming weeks/months/years. Any failed experiments will never see the light of day and the successful experiments will become Claude X or GPT X, etc.