> lack of resources, hunger, mental distractions, illness, or motivating incentives Sure, that's a factor, but people can also simply be dumb. There's no quali

> lack of resources, hunger, mental distractions, illness, or motivating incentives Sure, that's a factor, but people can also simply be dumb. There's no quality equal for all humans, whether it's length, strength, weight, hair color, or intelligence, regardless how you measure it. The (rather superficial) article looks at it from the first person stance, but individuals are bad at estimating their own cognitive capacities.