Physics and math are real
I enjoyed Mr. Hughes book, good characters, a good plot, and plenty of action. However, what he knows about space combat, tactics, movement and physics could be written with a very large crayon on a very small postage stamp. For example, over and over his space fighters are limited by life support measured in hours. Did Mr. Hughes never watch Apollo 13 ? Given A 100 liter tank of lox (liquid oxygen and some CO2 filters and a small amount of power to refresh the filters, life support is measured in weeks not hours.