True story.
10 minutes of bullet is better than 10 minutes of rapid

Argue with me
I love bullet chess - but it's not ideal for learning or improving.
The short clock doesn't allow you enough time to think to your full potential. As a result, you're playing weaker and sloppier chess than you should be.
Do it enough, and you're essentially practicing the habit of playing bad moves. Essentially, you're training yourself to be a worse chess player.
But oh, that bullet clock sure is fun! I won't argue there ...
Yep, my good deed for the day.