> they don't understand it and therefore they fear it

I feel this whenever discussion of consciousness comes up. Even though consciousness is not well understood at all (e.g. no scientific progress whatsoever on the "hard problem"), some people would rather say "it's just molecules and we don't have free will, we don't really exist, it's all an illusion, science will reduce it eventually, etc. etc." It baffles me that some people would rather contradict their very experience and declare that they don't exist! Rather than admit there's something that may be impossible to understand.