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I'm pretty sure the author understands sha256: https://scholar.google.com/citations?user=pd-IjLcAAAAJ

Fair call, seems he just was a bit abridged in his simplification.

Shh. airbreather has money in bitcoin. Don't confuse him/her with facts. :)

Actually I am betting against bitcoin as I only hold alts, and I only hold small amounts of POW coins because I believe the concept is not sustainable and the fixed block solve time brings certain kinds of scalability issues.

I like the look of Universa currently to try and address a lot of the POW issues and also the hard fork and Kitties type problems from full decentralisation.

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