89 is not 90

If you're practicing effectively, skill plateaus aren't real. Sometimes it might seem like you're stuck in a rut, but I can't tell you how many times I have seen someone think they're not making progress only to suddenly experience a major surge in performance. It happened to me, and it can happen to you.

Mistakes Are Data

There is a saying that shows up fairly often when people talk about practice: "The master has failed more than the novice has tried." This is good and wise and true. No expert would deny it. But, how do we make this wisdom a part of our journey toward expertise?