[LegitShady]

>Under socialism, a battery factory that invents a more efficient process for creating batteries can pass that saving directly to the workers - rather than working 40 hours a week they can work 20. Their leisure time is increased.

In socialism, you work according to your ability to the maximum society allows, and you receive according to your needs the maximum the society can provide (ideally).

If you could work 40 hours before the process, there is no reason for you to work less than that now. Your labour isn't defined by your output in batteries, but in hours. Nobody in socialist countries worked less because of technology advancements, they just had higher outputs, like in capitalist countries. The benefit-er is the factory owner, ostensibly 'the people' but really the state/party officials. You are a person, not 'the people'. You don't benefit from it directly - that would be theft from the people.

You don't get to keep your labour because you owe it to the people, comrade. Don't be greedy with the people's resources. Who are you to take from the people? You could be sent to a gulag for re-education, and then who would stand in line for your family to get bread?