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Barges piled with sand traverse the sea lanes around Singapore, almost as ubiquitous as the semi trucks that ply America’s interstate highways. Aboard a small motor boat one recent afternoon, I catch sight of an imposing green wall rising from the shoreline protecting a huge sand stockpile. As one of the world’s most densely populated countries — intent on building up, down and out — Singapore couldn’t survive without millions of tons of the grainy stuff.
The city-state is slowly ticking back to life as the coronavirus lockdown eases. Yet answers to the existential questions about Singapore’s future aren’t in
