A friend pointed out my bias on the Antikythera mechanism and it made me rethink a lot
I was deep into a theory that the Antikythera mechanism was a one-off, a genius toy for a rich person. A buddy of mine, who works in mechanical engineering, looked at my notes and said, 'You're assuming ancient tech can't be replicated. That's a modern bias. If one person could build this in 100 BC, others could too. You're looking for a mystery where there might just be a gap in the record.' It hit me hard. I'd been so focused on its uniqueness as proof of a mystery that I ignored the simpler idea: we've only found one because bronze gets melted down. I shifted my research. Now I look for evidence of the technical knowledge base that would allow it, like specific gear ratios in other contexts. It's less about the 'what' and more about the 'how common.' Has anyone else had a basic assumption about a historical object completely flipped by an outside perspective?