I find it curious that you point out regular social interaction as a major culprit of lost time here but not the 4 different communication mediums that every workplace uses, or the egregious levels of ritualistic meetings, or the expectation of travel being on employee time, or the lessening of the value of our dollar resulting in multiple people having to work full time jobs in a single household to provide the same as generations ago.
If you don't want people to interact in normal ways, why have a business, would business outcomes not be improved by humans interacting and forming social bonds within their workplace, a place that by current standards, we spend 50% of our awake hours?
I didn't point out meetings because they are required by the company therefore the company deems them valuable enough to consider work time. So it stands to reason those meetings you think are useless will still exist In a 30 hour work week.
As opposed to fraternizing at a person's desk, which is not considered work time. Generally speaking. I'm sure there exists companies that encourage fraternization as part of work but they are definitely the minority.
If you don't want people to interact in normal ways, why have a business, would business outcomes not be improved by humans interacting and forming social bonds within their workplace, a place that by current standards, we spend 50% of our awake hours?