[matwood]

> There are tons of lab experiments showing people's ability to learn goes down when they're sleep deprived.

I get that, but instead of immediately jumping to sleeping later maybe we should look at why kids appear to be going to bed later. All of the devices and distractions have likely pushed people to stay up later and later. Maybe the fix is not to move school times, but have parents take devices away at a reasonable time.

[Symmetry]

Generally speaking young children will tend to go to bed earlier and wake up earlier than their parents and adolescents will go to bed later and wake up later. It's true that electric lights and computer screens have exacerbated the problem of teenagers wanting to sleep in but they didn't cause them in the first place.