Again, this is a false analogy. Walking/not walking is a single attribute. Sex is determined by a myriad attributes. I think we just have to treat sex not as a perfect categorization, but a scientifically useful one, like taxonomy.
We always have to simplify reality to make it easier for us all to understand, like the image of electrons orbiting nuclei. What matters is that the model works in the overwhelming majority of cases. I think @M_Methuselah said it best when he said this:https://twitter.com/M_Methuselah/status/935808822496714753 …
Loading seems to be taking a while.
Twitter may be over capacity or experiencing a momentary hiccup. Try again or visit Twitter Status for more information.