> But women aren’t inventing, discovering or creating in proportion to their increased professional participation.
Do you have evidence to suport this? (Geniunely curious)
Why do you think that is the case? Just the fact that they are more likely to be part-time or not able to be fully committed into their field while also being a mother does not warrant them enough time/energy/x to achieve those breakthroughs?
Although the author phrases it as "70+ hours a week", my assumption is it's not the hours per week that he doesn't want to commit to it, but the total hours involved that it's going to require to solve the situation.
Whether that's 70 per week or 5 hours per month, the total amount of hours needed is going to be x,00 or x,000 - and that's time he simply thinks is not a priority or valuable to him.