stray thought "communism is bad because it produced stalin and mao" is kind of a weak argument and "yeah look at all the shit generated by capitalist systems" is a fair and reasonable retort the better take is probably something like:
hm mulling this thinking the next big margin along which we gain wealth is less energy and more biology or computational sophistication like--current energy prices suggest we're not getting much from the marginal erg total value is incalcuable, granted