There's a book by Stewart Brand called "How Buildings Learn", which goes into the importance of changes made after the initial construction, and how much they contribute to making buildings humane. What I took from it is: buildings are like anything, we can't just imagine them in abstract and have them turn out perfectly. Reality is messy, people are complex; there are a hundred things you can't imagine up front that need to be attended to before a building really meets the needs of its inhabitants.
In that light his argument for bricks vs concrete is that bricks are very easy and low-tech to adjust after the fact. Concrete is amazingly resistant to change.
Having said that, maybe we just need another set of robots for sawing up set concrete, but I'd call that a harder problem than printing it in the first place, and perhaps bricks still have a role to play in the interim.
In that light his argument for bricks vs concrete is that bricks are very easy and low-tech to adjust after the fact. Concrete is amazingly resistant to change.
Having said that, maybe we just need another set of robots for sawing up set concrete, but I'd call that a harder problem than printing it in the first place, and perhaps bricks still have a role to play in the interim.