For the title here, I've heard that before. Let's see: Take the set of all people who have had that idea and pick the ones who had the idea, say, since the bi

For the title here, I've heard that before. Let's see: Take the set of all people who have had that idea and pick the ones who had the idea, say, since the big bang ~13.7 billion years ago, first. Then for those people, no one else had their idea first. Contradiction. Claim is false. Done. Not complicated. What's more complicated is why such a claim would be made, and a conjecture is that someone wants to denigrate ideas and the people who have them.