What is Earth's most important resource?
Coal? Oil? Geothermal energy? Wind power? Potential energy? Nuclear power?
None of those. They don't even qualify for the top five.
The undisputed number one is "stars," followed closely by Earth's core and humanity. As for the remaining two, well, I was hasty and haven't thought of them yet...
A disclaimer: this book has no protagonist and no central theme. Of the words "science fiction," only one probably applies, and I still haven't decided which one!
This novel and its characters are entirely fictional. Any resemblance is purely coincidental. Do not imitate.