Well, everyone being tabula rasa has a point tho. Technically there's no unique physical cause that make development unfold the same for all organisms, or even all humans (see Waddington's epigenetic landscape). It just happens that we develop along very similar trajectories and can draw equivalences between how I think vs how you think. So, from an ontological perspective, if you squint a bit, we all are tabula rasa. But from a phenotypic perspective, of course it's bonkers, you can't teach a frog linear algebra.