I liked your article on its merits but this:

> Both the upfront fixed costs and the ongoing costs of personalizing software have disappeared.

Is just wishful thinking, at best. We can say your own quirky little personalised software that works on your computer might have become cheaper. Production grade software that people pay for is a different beast. That’s why people pay for software: support and ongoing maintenance. LLMs have not and are unlikely to change that part of the equation. As a business the pure liability of not having anyone to call about an issue is a BIG issue.