Ok, so let's quickly run through this argument. Stop me at the part you think is a mischaracterisation: 1) Resource constraints are negligible. Other than labo

Ok, so let's quickly run through this argument. Stop me at the part you think is a mischaracterisation: 1) Resource constraints are negligible. Other than labour, obviously. 2) The skills to build a house are quick to acquire. It takes a couple of years. Less time than people are already spending anyway under general schooling as I assume the UK has 10 years compulsory education like most of the civilised world does. 3) The payback on a house is huge because the compensation for labour is high. 4) And I suspect you just demonstrated that people need to coordinate in groups of double-digit size to build a new house. Since they can sell the house for a 90% markup on costs they'd probably get wealthy doing it. So is your argument here that the UK can comfortably house the entire world population? All 8.5 billion? Everyone gets a nice big apartment, maybe 2x the size of the current median? Let alone rental stress and housing unaffordability which are banished problems? Because given that we're ignoring the actual constraints (physical space, capital and materials) I'm not seeing what you think is the limiting factor here that doesn't just scale up as we add in more humans.