We live in a age where people have knowledge at their fingertips, yet it is said that humans are stupider than ever, I attribute this to enviormental stimuli (or lack therof), you will notice a marked difference between people raised in inner cities vs those raised in more naturalistic settings, those not exposed to complex enviorments In which to learn show much more extreme and frequent maladaptive behaviors and a less adapted immune systems, also exposure to trees,forest and similar stimuli raises i.q , I find many inner city and other unexposed groups tend to be more fearful and show disdain towards the very things that would likely cure them such as camping ,fishing,swimming in lakes etc.