I was an expert in calculus in college. But not today.
I was not an expert in software development in college. But I am today.
I was an expert in engineering product development 20 years ago. I still am today but in a different way. I probably won’t be 20 years from now.
All expertise follows an arc. It’s a moving target. You can gain expertise, and you can lose it. But you can also gain it and keep it.
Just because someone was doesn’t mean they are. And just because they weren’t doesn’t mean they aren’t.
It’s about finding where they are on the arc.
