"You are a quick starter, but a poor finisher"

I worked with soooo much people that are like this.

I start working at a company and those people stick out. They know stuff about everything, write thousands lines of code a week and start new projects like nobodies business.

First I admired them, because they seem to be the better developer, the 10x engineer everyone talks about.

But somehow these people were never reliable. Probably a intrinsic feature of their characters.

It takes time to learn new things and it also takes time to start new projects, this just doesn't scale if you start projects faster than you finish them.

First they blow you away with new things and later they can't keep up.