Cruising media without pauses feels like learning, but it’s not. If you don’t follow up the information by interacting with it, it’s in one ear and out the other. Redundancy helps, too. If you’re trying to teach your child about elemental particles, choosing a series of YouTube videos from different sources, with pauses each time to discuss them can be great, but the choosing and the pausing, to write or discuss notes, are what makes it learning instead of passive channel surfing.
This isn’t a HOWTO sit your kid down in front of a computer and have them turn into a genius. There is nothing that does that, there is nothing good that doesn’t involve effort from adult caregivers. Education is a conversation between people who care for each other, an energetic passing of culture and skills between generations. It takes our full attention in the moment to do it right, and that’s valuable, even when we don’t have nearly as many moments as we’d like.