Youtube and Wikipedia have made deep education extremely accessible. The 21st century will be a time of extreme growth of knowledge. The algorithm's role is ensuring that "cancers" of the mind don't spread.,(reply>), @Deaner Hockings - Reptilian Hunter This worries me. I have watched a lot of YouTube in the last five years and learned many things.  In this process, my political views have changed. Could this be done deliberately based on my personality? <br><br><br>When I think of how the Trump campaign used algorithms to identify some people's neurosis and target ads that were effective in scaring them to vote a certain way, it seems like there are potentials for manufacturing consent or revulsion to control the masses. I may be unduly paranoid. After learning about the surveillance state on YouTube.,(reply>), And who decide's what's 'cancer of the mind' and what isn't? Perhaps it's just a reasonable opinion that you've never considered before but something that YouTube are ideologically against.