I didn't say you're targeting more intelligent people, just more technologically inclined people who are most likely accustomed to Adsense ads and therefore less likely to click on them and provide you income.
There are a lot of niches out there that are full of really intelligent people who are less technologically inclined than most of us who would be more likely to give consideration to an Adsense ad than we would..
There are a lot of niches out there that are full of really intelligent people who are less technologically inclined than most of us who would be more likely to give consideration to an Adsense ad than we would..