
Think that's just one aspect -
When long out of practise, the hippocampus tends to have a leaky buffer - never transfers the details / or often, even the gist/overview to er, harder storge.
{roughly.. speaking}
Will agree that, Interest is ever The key to bringing one's full Attention to any event (visual or just audio, or even - touching things in the dark. ;-) But I think one's capacity can become lowered.. by a steady diet of all those 10-sec-span trivialities, now a daily flood -- especially for those with diverse devices.
(Could the factor be N! for this effect? Can I get another Honorary Degree for that?)
Hey! it's Rupert Murdoch on Charlie Rose tonight, for the hour...
er, what were we talking about?