"The tech world is salivating over the idea. But some experts warn it’s a field of dreams."

“I bet you my earthworms are down about a foot,” Chappell says through a coppery beard, his large hands hunting for warmth in the pockets of his sweatshirt. “You could probably dig ’em up yesterday, but right now it’s too cold. This place is covered in earthworms. And it didn’t used to be.”