Very good science popularization, the threshold for Sol's project team is really high. For wallet projects, if you don't mortgage a large amount of SOL yourself, you won't have the qualification to package transactions for users first, and you will get stuck. Once you get stuck, you won't have any users So Sol's wallet products are unique among all public chain wallets, providing a rare opportunity for overtaking in the wallet market in recent years. Then, due to the high admission fees and low profitability of traditional wallet models, Sol has given rise to new types of "wallets" such as meme bots