If you like NFT, you can go to OpenSea to understand every step of the top 20 listed projects in the ranking from early publicity and issuance methods to later operation and ecological expansion, think about their internal connections, and summarize why these projects can become blue chips; Then learn how those projects that were popular at a certain time touched the emotions of the community, and why they did not continue the popularity; Finally, I summarized my own thinking logic on these projects and formed my own research framework.