Nonfiction · Scale Wars · Earth volume
The Deep Harvest: Dredging the Below
The Earth-side frontier: deep heat, ocean minerals, lithium, hydrogen, and the hard parts between story and industry.
- Frontier nonfiction
- Scale Wars · Earth volume
- 610 pages
- February 11, 2026
- Kindle on Amazon
About this book
The Deep Harvest turns the Scale Wars lens back toward Earth: superhot rock geothermal, deep ocean minerals, direct lithium extraction, natural hydrogen, and mining with microbes. Each one gets the same treatment — what the resource actually is, what the machine that harvests it looks like, and what stands between a good demo and a working industry.
The recurring answer is bottlenecks: drilling that survives the heat, collection that survives the ocean, processing, permits, pipes, and customers. Finding the resource is rarely the hard part.
The Scale Wars pair
- The High Ground — the space frontier: lunar industry and cost gradients
- The Deep Harvest — this book, the Earth frontier
The two volumes stand alone and can be read in either order.