[quickthrower2]

Not sure what you mean? Productivity here is in aggregate over the whole economy, whereas luck might come into it where you say "person X got rich off there idea - they were smart, worked hard, but they also needed some luck, such as being born next door to $influencial_person or whatever lucky thing they had.

[latency-guy2]

I guess that no matter what, it's impossible to believe people made things and the magical forces of the universe made it so only a specific people gets to make these things.