how we met: I first met Plidezus on a fancy notion page called 产品沉思录（精选） ProductThinking. There are huge amount of valuable passages, although I got little time to read (another web page I would like to spend a lot of time to read is Andy Matuschak's personal site). Anyway, then I found him the founder of Flomo, but I did not pay any attention to this note-taking tool at that time, cause I thought Roam Research could be all in one.