Do we really have to pay to remember things? Like 'MEME hype day, funds retreat time,' do we have to spend money to remember these tips (mnemonics)? I don’t get it... Isn’t free and public content good enough? Do people think free and public stuff isn’t worth anything? Out of the vast ocean, we only take one ladle of water. For things that can be shared publicly, even a small tank of water is hard to come by.