// ⚠️ 易错点4：循环条件写right = 0（会导致right-1越界），或把<=写成<（漏判相等的有序情况）
There's also Stream.broadcast() for push-based multi-consumer scenarios. Both require you to think about what happens when consumers run at different speeds, because that's a real concern that shouldn't be hidden.
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Фото: Evelyn Hockstein / Reuters