Yep. Having to look up every API call, versus taking the time to memorise the (relevant parts of the) API, makes the difference if you want to be a 10x coder.

Yep. Having to look up every API call, versus taking the time to memorise the (relevant parts of the) API, makes the difference if you want to be a 10x coder. Knowing how to look up and apply things is nice. Being able to discern which of the things you looked up are worth memorising, and then actually doing so, is even better.