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A thousand years of effort might be able to "domesticate" the bumblebee and make it produce something akin to usable amounts of honey - but unlikely to be worth it.
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Someone domesticated foxes in 20 years https://en.wikipedia.org/wiki/Domesticated_silver_fox , so perhaps it's possible to domesticate bumblebee in a few decades - but unlikely to be worth it.
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Bumblebees are being "domesticated" to some extent, for pollinating greenhouses, but they're used as labor animals rather than food.
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