All sorts of things like this. Rogue waves essentially weren't believed to be possible until 1995. Conflating failure of imagination (lack of proposed mechanis

All sorts of things like this. Rogue waves essentially weren't believed to be possible until 1995. Conflating failure of imagination (lack of proposed mechanism) and impossibility is a rather common failure mode. Heck, it took a decade for biologists to just agree on the Hardy-Weinberg theorem!