"...it is hard to think of anything else that we depend on so heavily yet know so little about." Except for the power grid, communications infrastructure, medi

"...it is hard to think of anything else that we depend on so heavily yet know so little about." Except for the power grid, communications infrastructure, medical system, food system, water system, the internet itself, monetary system, etc. It's not really the lack of knowledge about search engines that bothers the author. What makes it stand out is its novelty and the fact that it's visibly controlled by a few entities.