Is there a single key factor in the difference between the assurances in PoS vs PoW? The knowledge and proof that there is a real world, inescapable cost to both producing the currency, & editing the chain history - unforgeable costliness. Learn about this, the private keys attacks that risk entire contesting histories in PoS systems, and to the nothing-at-stake problem. This and more in today's read!
Check out the original (hit that applause button) plus the other great pieces Hugo has on his Medium page!
For a deeper dive into unforgeable costliness, listen to the absolute essential read, by Nick Szabo, "Shelling Out, The Origins of Money."
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