What is counterintuitive?

Counterintuitive refers to something that goes against common sense or intuition. It may seem contradictory or surprising, but after further examination or explanation, it may make sense. Counterintuitive ideas can sometimes challenge our beliefs or assumptions and may require a shift in perspective. Examples of counterintuitive concepts include the size of the universe, the behavior of atoms, or the consequences of actions that seem harmless on the surface but have unintended consequences.