What I found is that written evidence for knocking on wood (and for the history of gesture as a whole) is remarkably sparse. In the Penguin Guide to Superstitions, folklorist Steve Roud offers a skeptical take on the provenance of knocking on wood due to the near total absence of written records about it:
新时代以来，宜昌干部群众牢记嘱托，摒弃粗放发展模式，整治长江岸线、修复生态，零散码头变身生态公园。作为全国重要的磷化工基地，宜昌历时8年完成134家沿江化工企业的“关改搬转”，磷化工循环产业集群中精细化工的占比从不足两成提升到目前的近50%。
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What follows is a proof of concept: it's not a finished standard, not a production-ready library, not even necessarily a concrete proposal for something new, but a starting point for discussion that demonstrates the problems with Web streams aren't inherent to streaming itself; they're consequences of specific design choices that could be made differently. Whether this exact API is the right answer is less important than whether it sparks a productive conversation about what we actually need from a streaming primitive.
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