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Chicken vs Egg
(mander.xyz)
A place for majestic STEMLORD peacocking, as well as memes about the realities of working in a lab.
Rules
This is a science community. We use the Dawkins definition of meme.
They know, but the person they originally responded to is making a faulty inference in the form of "pigs = mammals, mammals emerged at X date, pigs emerged at X date". They aren't properly recognizing that eggs are a distinct subset of unicellular organism (which I also think isn't actually true of fertilized eggs) and you can't infer from the set "unicellular organisms" having a trait that "eggs" has the same trait.