Naval: 海军转发： 自下而上：您选择关注谁、静音谁、阻止谁 自上而下：Twitter 决定你从谁那里听到，更重要的是你不听谁。 任何不明白这一点的人都应该被忽略

Naval retweeted:

Bottom-up: you choose who to follow, who to mute, who to block

Top-down: Twitter decides who you hear from, and more importantly who you dont.

Anyone who doesn’t get this should be ignored