A most fascinating work, Nerys
I don't want to repeat what everyone else has already said, so--I'll focus on another element:
You wonderfully portray, in vivid detail, the creative mind at work. The writing process, via "stream of consciousness". They way the couple bounce ideas off each other is superb, and very realistic and believable.
"The saying implies but does not name the effective agency of its supposed utopia.... 'Needs and abilities' are, of course, subjective. So the operative statement may be reduced to 'the State shall take, the State shall give'."