[graemep]

I agree that the big difference is between short and long form reading.

i do not think this is discipline so much as inclination. I never had to discipline myself to read a book I enjoyed (whether fiction or non-fiction). Some books grip me so much it takes discipline to but the down.

What this seems to show is that long form reading has significant effects on your brain, developing the ability to read long form. I am not clear on whether they have shown which way the causality runs: maybe having a brain adapted to long form reading just makes you more likely to do it. It could even run both ways?