Comment on That's a whole lotta hydrogen!

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Binette@lemmy.ml ⁨1⁩ ⁨day⁩ ago

The issue with your argument is that you’re ascribing a simple explanation how biology works to the actual reality of things. When doctors or evolutionary biologist say that something was “supposed to be done”, in the context of biology, they usually mean “this is what the being (as in, its system) does for the possible outcome of reproduction or survival, but there are other possibilities”. They don’t actually mean that this is what is supposed to be done. It’s a way for people to understand it more simply, and is implied.

You should read the Wikipedia article on Teleology in biology. But this paragraph is the most central part of the argument against your point. Teleology means a certain “goal-oriented”-ness.

Statements which imply that nature has goals, for example where a species is said to do something “in order to” achieve survival, appear teleological, and therefore invalid to evolutionary biologists. It is however usually possible to rewrite such sentences to avoid the apparent teleology. Some biology courses have incorporated exercises requiring students to rephrase such sentences so that they do not read teleologically. Nevertheless, biologists still frequently write in a way which can be read as implying teleology, even though that is not their intention.

As an example, take a meteorologist providing forecast for tomorrow’s weather. With whatever means they collected data, they assert: “it will rain tomorrow”. Tomorrow comes, and it is sunnier than ever. Scientifically speaking, the meteorologist cannot say “the atmosphere failed to make it rain, even though it tried to”. If this seems absurd, it’s because it is. In that case, the meteorologist is supposed to adapt their model into something that more accurately reflects the data given.

The problem is even more visible once you take the example of an intersex person, born with XY chromosomes, but with a uterus (Swyer’s Syndrome). One person could base themselves on the XY chromosomes to say that the person was “supposed to produce small gametes”, as you put it. Another person could base themselves on the fact that (with medical intervention) the person can produce large gametes, therefore, that the person was “supposed to produce large gametes”. Either answer is wrong, since the body isn’t actually “supposed” to do something. It just does what it does, regardless of what you think it is supposed to do. The correct thing to do would be to say: “They aren’t supposed to do something. If our model is to be empirical, it should be supposed to reflect what is actually going on with their body, not ascribe a will to it. We should rethink how we see the definition of sex”

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