The value of a person lies in finding connections between memorized information. I previously recommended bidirectional link software to my friends for rote memorization, and many people asked me “Why use bidirectional links? What are the benefits?”. I will write a short article here to answer these questions. I have tried many note-taking software before, such as Notion, Evernote, and even Typora managed directly with git. Most of the time, I didn’t have the motivation to take notes.