Free Range by Bill Whitehead for August 02, 2018

Actually, yes it should. The Archimedes principal explains it as I recall. Carved oars might be a problem, though….

Regardless, it’s a work of art!

He’ll learn, schooner or later.

If the amount of water displaced by the boat weighs less than the boat then it should float.

He was stoned when he thought of the idea.

The launching might be a bit rough.. Oars made of rock are tricky to use though and a sail out of rock will likely make it tippy

Actually, concrete boats have been around for over 100 years: https://www.warhistoryonline.com/military-vehicle-news/did-you-know-concrete-ships-were-built-during-wwi-wwii-only-a-handful-survive.html

Actually, Henry J. Kaiser made millions selling concrete cargo ships to the American military during the Second World War. That’s how he scrapped up the capital to start his own auto company after the war.

Yes, but it’ll sink faster also.

Bravo Whitehead! You took the ubiquitous “stranded-on-a-tiny -island” schlock and gave it a new twist!

It could float if it gets broken loose, but where it’s at it will certainly fill up with rain.

Good thing we got stranded on this pumice island!