 how to do things, whether it's reading, relating to people, motor skills, right? Jumping, playing, running. These are all things that come very naturally to kids. So birth to five thinks Sistine Chapel. I really need my kid to be very limited on screens so their brain can develop. And then they get another Sistine Chapel burst at puberty. So my goodness. So the Lord wired it so that during puberty you get more brain cells and that whatever's being used is kept.