Adapted from The Grand Biocentric Design, by Robert Lanza and Matej Pavsic, published by BenBella Books (2020).

You keep staring at the repair man. His words are starting to sink in. The fabulous and expensive generator you bought a few years ago to keep the lights burning during storms and power failures needs a major repair.

“A head gasket?”

You echo the phrase he just used, fearing that it has a pricey ring to it. “What exactly is a head gasket?”