How Long Does It Take to Form Habits?

The most popular study that gets quoted both I would say in academia and in industry is a 2010 study that assessed how long it takes to form habits. And yet even among a group of students who have a lot more flexibility traditionally, 50% at least of those university participants did not achieve the automaticity status that that 66 day average is about. So we have to ask if students who tend to not be juggling all these things that we've been talking about can achieve automaticity. It's such a limited resource. In lives that necessitate pivoting and being flexible, we need the exact opposite.