Юлия Сычева (корреспондент)
It is also necessary to emphasize that many optimizations are only possible in parts of the spec that are unobservable to user code. The alternative, like Bun "Direct Streams", is to intentionally diverge from the spec-defined observable behaviors. This means optimizations often feel "incomplete". They work in some scenarios but not in others, in some runtimes but not others, etc. Every such case adds to the overall unsustainable complexity of the Web streams approach which is why most runtime implementers rarely put significant effort into further improvements to their streams implementations once the conformance tests are passing.
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Simpler Type Constructors#
The AI narrative makes all of this worse. Wall Street is pricing AI as if it’s already reshaped the economy. The NBER published a surveyed in February on AI use, with data from nearly 6,000 executives across the U.S., UK, Germany, and Australia. More than 80% reported zero measurable impact of AI on productivity or employment over the past three years. AI will be transformative, but the gap between what the market is pricing in and what’s actually happening inside companies is enormous.
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