1 year: simple demos and games 3 years: released first shareware 8 years: first job, narrow knowledge, good at C 15 years: competent to do a middling job any

1 year: simple demos and games 3 years: released first shareware 8 years: first job, narrow knowledge, good at C 15 years: competent to do a middling job anywhere in a BigCo 20 years: probably at the level you're asking about 30 years: lo I am become as a god, conjuring living universes by the Logos