As a retired teacher, I know that children need periods of quiet and reflection, doing nothing but thinking. But also, they need stimuli to encourage their brains to absorb and deal with new experiences and data. It's a question of balance. Continual bombardment by Xbox games and computer screens is overload. The one thing I think is lacking is physical activity, sport, exercise etc. If one could achieve a happy balance of all three, the child would develop to its full potential. And the same more or less applies to us adults. You can tell I'm a Libran!