Could the problem possibly be, asked Caroline Criado Perez in her book Invisible Women, that we have “woman-blind tech, created by a woman-blind tech industry and funded by woman-blind investors”?

She was writing about the type of gender myopia that led to Apple launching a “comprehensive” health app in 2014 that included tracking of molybdenum and copper intake but not periods. Or wearables that aren’t, in fact, very wearable for half the adult population. Or products, like a radically better-designed breast pump or a pelvic floor trainer, that (unlike molybdenum apparently) were dismissed as too niche.

While Silicon Valley may encapsulate this phenomenon in particularly pure form, it’s a problem that reaches far beyond the California borders.