"Standups share knowledge. Wikis share knowledge. Comments share knowledge. Code should share knowledge" That's all true but code reviews certainly share a lot

"Standups share knowledge. Wikis share knowledge. Comments share knowledge. Code should share knowledge" That's all true but code reviews certainly share a lot of information and feedback specifically related to the context of the day by day development. Which certainly will increase your productivity by teaching you about mistakes and at the same time letting you evangelize someone else in your team/organization. You won't find the same amount of information for your project with as much frequency as you do on code reviews.