quote: "Of course, differences exist at the individual level, and this doesn't mean environment plays no role in shaping us." And that's the whole point: some women will be better at STEM than men -- it's a bell curve, not a sharp divide. On that basis, we could indeed find somewhere near a 50-50 split in the STEM fields, especially since higher level Engineering roles depend on the ability to create agreement within a group, which it doesn't appear the Manifesto writer understands.