>
This is just the true Scotsman fallacy, thoughI think the "true Scotsman fallacy" is often used as a way to dismiss actual classification mistakes.
What one calls focused might not actually be focused -- humans are easy to deceive themselves.
Besides, I don't see what other possibility would there be. That being focused is not important? That people can just as well achieve the same (or even more) things when unfocused vs when focused? That we need special statistical studies to be able to tell that working focused on that work is better? None of these look plausible to me.
If what you're saying is that sometimes non-deliberate attempts can work too, that might be so, but by definition those are non-deliberate, happy accidents.
You can't program these. What you can program is actual work -- and that better be focused, than, "I'll fool around for weeks with other things until inspiration strikes".