"In other countries they might spend a lot of time at work, but that doesn't mean they work a lot. Changing the culture and the mindset is the biggest challenge."
Excessive ceremony for common operations
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Simple punched card equipment gave way to advanced punched card equipment,
This is the same idea behind binary search. In a sorted array, you compare against the middle element and eliminate half the remaining candidates. In a quadtree, you choose one of four quadrants and ignore the other three regions. Each level narrows the search space by a factor of four instead of two.