Human knowledge is a fickle thing that has no finality, no matter how much we’d like to think it does. Every generation assumes they have all the answers, yet our knowledge continues to grow, and things that we take for obvious truths are routinely shattered by new scientific understanding.
There are many glaring examples of this throughout history, and the list below includes eight of the craziest things that humans have believed in the past.
The belief in a geocentric universe has predominated more of human history than our current understanding of reality. People have gazed at the night sky for generations assuming that everything else revolves around the all-important Earth.
We were so attached to the idea that the first few people to argue the truth (that the centre of our solar system is actually the sun, whoa!) were put to death.