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Stemming from this thread, and likely using this as a PoD:
What if Britain's manufacturing output grew more than OTL, maintaining Britain's position relative to Europe? What are the geopolitical effects? Does WWI still happen? What else?
CLARIFICATION: Oh, the idea is Britain maintains this edge until at least 1890, as opposed to seeing its growth lag in the 1870's. Sorry, should have given dates earlier