"Matthew Effect", or the Pareto Distribution Kind of an unjust ratio, but it explains exactly why the smart get smarter, the funny get funnier, the rich get richer, and the 20% of people in any business carry all the major tasks or own all the resources. The sci-fi pop about biohacking and brain function is replete with reminders for a reason:
brain training is trivial, getting used to certain work patterns, habituation is what brain teaching is all about. As an example, if compare the brains of a slacker and a "worker bee", you'll find that those used to working and laboring for abstract (not related to immediate survival) goals have higher levels of dopamine in the striatum and prefrontal cortex.
That is, workaholics have pumped up zones responsible for motivation and reward. Whereas loafers, addicted to momentary, not time-delayed pleasures, have more dopamine in the areas responsible for emotions and risky behavior.
