In the past, the strength of the male was an advantage. 1000 years ago, if a rock was to be lifted, all the energy required for lifting it had to come from beasts or –from what amounted to the same– men. Now we have machines stronger than the strongest man or team thereof that can be assembled. In the few activities where human strength is an advantage, this signals the need for more technological development, for it is precisely those activities the ones that should be performed by machines, so that humans are freed for more worthy endeavors.