[captain_perl]

As far as being able to visualize what it's like to be a 10x developer, such a person can continuously type whatever is needed to get to the next step, whether it's code or sql or whatever, while maintaining adequate performance and quality.

They don't have to type fast, but they're also not relying on Stackoverflow for learning concepts.

Most web applications start as prototypes written by one guy in 90 days or less, then just re-labelled as "production."