You’re lazy and overconfident.
You’ve been reading this blog for a while, and you’ve been telling yourself, “Yeah, I’m pretty good at this database thing. I’ve got years of experience under my belt. I know the fundamentals.”
You’ve told yourself, “Yeah, someday I’ll get to Brent’s How to Think Like the Engine class,” but…you’ve never actually done it. You’ve never watched the whole video start to finish, nor read the 16-part blog series start to finish. And you sure haven’t made your way up to my Fundamentals of Index Tuning class.
I feel you. I procrastinate a lot too.