Spend your days diverted by your devices, tethered to television and majoring in mindless pursuits and your brain will be weak and flabby through your mistreatment of it. Just like other muscles, it will atrophy. And this will result in weaker cognition, slower learning and lower processing power. Your competition will destroy you and your targets will elude you. On the other hand, when you use your brain intelligently by expanding its limits and running it like a titan, it will expand and increase its connectivity causing important gains in your productivity, performance and influence.