For most examples you need to squint pretty hard to make them "the same" though. In a world of "x, but for y" these are essentially new inventions, it's only ou

For most examples you need to squint pretty hard to make them "the same" though. In a world of "x, but for y" these are essentially new inventions, it's only our human brains in hindsight that look for the continuity. It's also an interesting question to ask if you can really seperate the idea from the execution when defining an "invention".