Ask Ethan: Do black holes grow faster than they evaporate?
Ethan Siegel
1K8

@Robert Oldershaw: “never been observed in nature” is not the same thing as “abstract”. Until recently, gravitational radiation hadn’t been observed, but that didn’t mean it was abstract — just terribly hard to observe. Now that it has been detected, it didn’t suddenly convert from “abstract” to real.

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