Comment by ordu

You know, there was an idea of a planned economy, which promised the best allocation of resources. But it didn't work in practice. What works is a chaos, when everyone does what they deem worthy to do. We can see, that the overall result is a progress, ideas are tried, rejected or accepted. But we can also see that efficiency of the process is not ideal. You talk about this non-ideals in terms of "fragmentation" and "tech debt". My point is: we can claim that costs of fragmentation and tech debt are avoidable, if we cannot propose a way to avoid them, while keeping benefits.

You think that it will be better for people to stop developing programming languages, but how do you think new programming languages will appear? Will they be better? To be better you need to try new ideas and to look how they work in practice. And very probably your ideas will fail when tested by reality. How to organize the activity to test new ideas without risks of fragmentation? We can't keep our results of developing an experimental language in secret, because then everyone will do the same, and we would need to test all ideas without any hope to learn from other's experience. U'see, the very activity of testing new ideas is almost a synonym for fragmentation.

I don't think you have any viable alternative to "every programmer should create its own programming language".