> But Huntley and Yegge have also been posting about $RALPH and $GAS, which are cryptocurrency coins built on top of the longstanding Solana cryptocurrency Sol

> But Huntley and Yegge have also been posting about $RALPH and $GAS, which are cryptocurrency coins built on top of the longstanding Solana cryptocurrency Solana isn't a cryptocurrency, it's a blockchain network (by some measures, the one with the most user activity). SOL is the native token of that network, used to pay transaction fees. These are two random tokens that happen to also use Solana.