It's a game of probability. Hal is marginally likely. Len is as likely if not more. As are 2 others.
Best not to delve top hard into this though. Let it remain mysterious.
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"While Forbes journalist, Andy Greenberg, was investigating the identity of Satoshi, it was discovered that a man by the name of Dorian Nakamoto, born Satoshi, was living only a few blocks from Finney. His family home was facing foreclosure by his bank and the retiree was swiftly becoming a victim of the harsh financial climate in the United States."
After this short sentence every clear-headed person is able to say who created Bitcoin. But let it remain mysterious... :)
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