I came across an article the other night on concrete (The Problem with Reinforced Concrete) that, after reading halfway through, I retweeted to remind myself to read fully the next morning.* And I have, and it’s a fascinating glimpse into one aspect of the how of urban decay aesthetic so beloved by cyberpunks, and an equally fascinating rebuke of the conceit of many twentieth-century far-future science fiction novels where all that is left of humanity is their concrete.