The idea that a lot of people have in their heads is that if the code doesn't fit the need, you'll just start over completely with a fresh codebase, because it's so fast to generate it.

In other words, there won't be 20-year-old code in this future.

We'll see if that comes to pass, but there's a lot of money betting that will happen; enough to where people will disregard what the downsides are.