# Tweets From Brian Ji ![rw-book-cover](https://pbs.twimg.com/profile_images/1710528939913859072/2jLFmH7u.jpg) ## Metadata - Author: [[@BrianJJi on Twitter]] - Full Title: Tweets From Brian Ji - Category: #tweets - URL: https://twitter.com/BrianJJi ## Highlights - Sam Altman: "I remember when Elon took me on a tour of the SpaceX factory many years ago. The thing that sticks in memory was the look of **absolute certainty** on his face when he talked about sending large rockets to Mars. I left thinking 'huh, so that’s the benchmark for what conviction looks like.'"<video controls><source src="https://video.twimg.com/ext_tw_video/1730395378149658626/pu/pl/zEL2iP-dpMzQjkw2.m3u8?tag=12&container=fmp4" type="application/x-mpegURL"><source src="https://video.twimg.com/ext_tw_video/1730395378149658626/pu/vid/avc1/480x270/2NCyylPj9a73LsHt.mp4?tag=12" type="video/mp4"><source src="https://video.twimg.com/ext_tw_video/1730395378149658626/pu/vid/avc1/640x360/P_SnuMCCy4yQ3lM6.mp4?tag=12" type="video/mp4"><source src="https://video.twimg.com/ext_tw_video/1730395378149658626/pu/vid/avc1/1280x720/wzmAqV8DRNjKM6eK.mp4?tag=12" type="video/mp4">Your browser does not support the video tag.</video> ([View Tweet](https://twitter.com/BrianJJi/status/1730395908578124159))