I am today, a 10x better programmer than I was where I started. In terms of quality, complexity, efficiency, readability, maintainability, everything. I was paid too much when I started and/or not enough now!
Notch and Carmack are 1000x better game programmers than I am. Linus is a 1000x better file system and operating system programmer than me. Monty is a 1000x better database programmer than I am. DHH can build a website at least 10x faster than me and do it in a way that would contribute 100x more to the community than I could.
If you discard people with decades of experience. If you discard people who have specialized. If you discard the many geniuses in our field. And then if you start to make excuses at the other end, and if you narrow it to a specific set of tasks, with a specific set of complexity, then maybe there isn't a huge gap. But even then, I feel that if you apply yourself to that task for a decade or two, you'll find that you're a 10x better programmer than you used to be.