An interesting history of the reasons for "rooms" in house building and the evolution to the open floor plans of today.
Not sure I agree with the last paragraphs about closing them down again though.
One thing missing in her theory is the fact of "central heating" and probably central air conditioning as well, which I think started more in the US with a garage or basement furnace that fed the whole house. As opposed to each room having it's own heaters or fireplaces which encouraged the use of closed rooms and door closing, moreso than an open concept home.
I prefer the open concept.
https://getpocket.com/explore/item/t...case-for-rooms