Ethereum is New York City; it is a happening place with the biggest DeFi protocols, the most TVL, the hottest DAOs and NFTs, but it is expensive. You scale by "building up skyscrapers" using L2 chain or "building out satellite towns" using interoperability networks that serve as highway connecting them.
Algorithmic stable coin is not very reliable because the assumption about the underlying volatility assets could break once in a while. Consider Long-Term Capital Management.
Every single moment you should be reading the most valuable to you based on the latest information. Don't be afraid to jump to a new book before finishing the current one.
Decentralization Naval: Some people may say you guys are not decentralized and only getting away with this because you don't have Feds knocking down doors. Could you still work if you guys were forbidden from working? Who could survive that level of assault?