Crypto's greatest contributions to humanity: 
1) Adding an overwhelming body of evidence to the millennia old universal truth: money is the root of all evil
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2) Digital store-of-value commodity as an alternative to Gold
3) Stablecoins that make USD more accessible in countries with high inflation + it's restricted

This highlights some key contributions of crypto: challenging the perception of money as a root of greed, providing an alternative to gold, and making stablecoins accessible in restrictive economies. It shows crypto's potential beyond speculation.