A bunch of people seem to find >20 pixel body text readable/preferable. Something weird afoot here.
Yes, the further away from the screen you are, the bigger the text should be, but I don’t think many people read screens from 2 meters away… Joni Korpi
There are two things here. Firstly, the gut reaction to really big text. It’s like being hit. But we get used to it and big becomes bigger.
Secondly: The physical relaxation we experience when we don’t need to peer (i.e. lean forward and contract our forehead muscles). When we can lean back, relax the centre of our back and breathe more friendly. Comfortable reading as a sum of muscle relaxations.
It’s not just font size, but that’s a major part of it.