The problem is that current social media software just makes it too easy for extremist bubbles to form. There is no feedback, no discussion, no diffusion, no guiding culture and plenty of false information spread by people who would be unable to publish anything to larger audiences if it wasn't practically for free. To a certain extent, economic systems do filter out people who are challenged at seeking truth. Internet technology has weakened this filter and here we are witnessing attempts at fixing this problem.