Not many at all. In the past 100 years there have been a staggering number of people alive, vastly more than in the 13th century. Comparatively very few of them

Not many at all. In the past 100 years there have been a staggering number of people alive, vastly more than in the 13th century. Comparatively very few of them had electronic distraction devices. Adding some small faction additional people-without-electronics-hours won't move the needle.