For most people, new ideas and perspectives make us uncomfortable. It’s easier and less taxing to surround ourselves with people who agree with our worldview, and reinforce our way of thinking, to make us believe we are correct. We self-select our communities, both in the physical world, and the online space, and these friends or peers become an extension of our own identity. A byproduct of this selection process is that our communities end up looking a lot like us and behaving like us. Tec...