I almost feel like his videos are anti-clickbait. On my YouTube recommendations page, often his title and cover image are the least eye-grabbing, but the actual video is always satisfying.

I don't even care about sand but he's so great I couldn't stop watching it

> Add me to the long list of people who heard the bit about desert sand not being suitable for concrete and believed it. I'm happy to be corrected.

Cristobol and Hank's whole business strategy down the drain! (From Barry)

He's got a great book as well. I got it because my 4 yo is a Grady fan but I enjoy it and learn a lot as well. "Engineering in Plain Sight: An Illustrated Field Guide to the Constructed Environment"

I loved how he tackled this from multiple angles.

Manufactured sand has those rough edges, and is often a waste byproduct of rock crushing anyway. But also, in practice, you want more weathered sand for ease of handling, since too-rough sand is less strong given the same level of workability!

I love his book too. I ended up buying a copy for my sister who kept asking me how I knew all their weird details about things like sewer systems :-)

> Gets right to the point in the first sentence,

Huge respect or the "tldr: no" right at the start.