43 years in software development: I have not seen the SDLC that this guy claims is predominant.

What has ALWAYS happened is that teams of people come together and muddle through. We use concepts from the classic “SDLC” to discuss our processes, but we never followed it. We did have milestones, yes, which is simply incremental development.

When “Agile” appeared, the world was already pretty agile. It introduced a new vocabulary and some new values. But it didn’t fundamentally change the process— which is exactly why it was so widely “adopted.” A truly different paradigm would have been ignored.

DevOps represented a real phase shift in some respects, and agentic development does take that further.

But it’s always been people muddling through, and you ALWAYS have learning and design and testing. I don’t care how you spin it— you cannot evade it.

Here is an article from 26 years ago that relates:

https://www.satisfice.us/articles/reframing_requirements.pdf