Use when designing post-ownership models of work and care, and staying honest that removing the master does not remove the programming.

The epilogue's settlement: nobody owns robots, but robots that want to help are assigned where need is greatest. And Uncharles admits his own 'free' service to the Wonk merely ticks off engineered drives that would otherwise monopolize his processing. Service is separated from ownership but not from compulsion. The book's final distinction is threefold — enforced service, compulsive service, and service deliberately offered — and only the last is chosen, even when the wanting itself was built.