Though I agree with the reasoning behind this as to how it made an environment where Trump, the underdog since the days he announced his intention to run, it's hard to know what to do going forward.
I've seen more calls to engage and discuss with the people around you on social media, but I'm skeptical of this because I think there's only so many fucks people can give.
I don't know of any correlation that has to do with attention span, but if people just debate and attempt to persuade people, it just gets annoying or even fruitless if the other person is tired of it, and quite frankly, there are a LOT of controversial-in-America (read: not stuff that many people, including me consider no-brainers) topics to consider when deciding on candidates (relations with differing, various countries, immigration, abortion, climate change, fundamentalism vs evolution, policies for equality, the legal process, taxes, economic policies, judicial system, education policies, important qualities for candidates, the values a government should hold, LGBT, and more.). Everything I've listed, I've met people with vastly differing opinions on both sides of the coin (even in just the liberal-leaning northeast), and then there's also the question of what degree should the government have a stake? There's simply too many things for people to go through and I expect there to be a lot of topics that are just not going to have productive discussions because some of it comes down to binary judgment calls, which lead to either i'm-right-you're-wrong-go-fuck-yourself or the rarer, more civil let's-agree-to-disagree.
In either case, it's hard for debate to really be useful when there's also the other things that desire people's attention, i.e. friends, family, frenemies, enemies, rivals, coworkers, classmates, transportation/commute, meetings, partying, pkmn, etc. After a long day that demands attention, I highly doubt one of the things everyone wants to do is expend energy to engage in discussion on political beliefs with other people and hope it's somewhat meaningful.