> There is an obvious reason to oppose such things: opportunity cost. learning anything takes time, and the curriculum is full. The way I see it the bigger bot

> There is an obvious reason to oppose such things: opportunity cost. learning anything takes time, and the curriculum is full. The way I see it the bigger bottleneck is not time but motivation. You can fill a whole day with studies that a student isn't interested in and end up getting nowhere, or you can spend an hour on a topic that is able to hold a student's fascination--I would pick the latter any day. Engagement is simply a prerequisite for meaningful learning at scale; without it progress is slow and uneven at best.