Krugman wrote an essay recently about the blockchain being overrated with no provable real world use. It did seem promising a couple of years ago but just sort of fizzled out, I guess.
At first I thought crypto was all about cleaning money earned illegally through drugs, gun running etc. But then I realized if you are trying to get money to a family member in a closed society like N Korea or Iran or wherever, or someplace with an unstable currency that it might come in handy.
As an investment, though, I've never been interested in it.
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