Our readingWhat is a korrent?
Duolingo's real competence is motivation and habit formation, and language learning was only the first thing it applied that to.
Drawn from what Albert Cheng said
What these subjects mean
language learning How an adult picks up a second language: input against speaking practice, immersion against slow habit, and whether a teacher can do it for you.
motivation What makes effort feel worth it: the neuroscience of wanting to act, apathy, dopamine, and habit.