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“Not every store will disappear, but there will be a dramatic shift,” Tim Steiner said at the height of the Covid pandemic, when shopping from the sofa became the only option for many.
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For implementers, this promise-heavy design constrains optimization opportunities. The spec mandates specific promise resolution ordering, making it difficult to batch operations or skip unnecessary async boundaries without risking subtle compliance failures. There are many hidden internal optimizations that implementers do make but these can be complicated and difficult to get right.
Each year the birds must stay on platforms of floating ice for long enough to replace weather-beaten feathers with new, waterproof coats.