In this issue, Mable had a wonderful conversation with Cao Yin. Cao Yin is the managing director of the Digital Renaissance Foundation. He is known in China for his strategic involvement in the Polkadot and Near ecosystems, as well as some DeFi projects such as Loopring and YFII. At the same time, Cao Yin is also a well-known NFT art collector. This conversation focuses on Polkadot, Layer 2 networks, other Layer 1 networks, algorithmic stablecoins, and NFTs.