Hi everyone Got this idea reading Hrot post on light and reading : http://theindiestone.com/forums/index.php/topic/13528-reading-light-and-realism/ Got me thinking that other factors then lighting can impair reading, slowing it down or even degressing the progression slowly (think utterly shit faced trying to understand complex mathematical stuff). The most obvious ones that could probably have the greatest impact are : drunk and sleepy status. Others that could affect in a more limited way, all of them affecting slightly the ability to concentrate : hunger, thirst, pain, unhapiness On the positive side, there could be additionnal status like well-rested that would affect reading speed (among other things). Some new drugs could be implemented to affect positively concentration and thus reading speed (ex.: Methylphenidate, Atomoxetine, ...). Antidepressants could be ruled to have this effect (as Methylphenidate is sometimes used to treat depression), but would require to have a ''positive'' moodle when it goes over the threshold.