it was good technically till a point but later author started bullshitting about technology he know nothing about. he dragged story unnecessarily for chapter count. after certain threshold technology increases in exponential factor but for mc he had conquered nuclear fission for 300 years but couldn't even attempt nuclear fusion, achieved 2nm semiconductors but never thought about quantum computers, unnecessary drag on AI. if this story was written prior to 2014 it would be excusable but you can play random mobile game to infer tech tree progression instead of being stuck at a point and wasting millions of tons of resources. games are alternative to every single physics and war simulation that provide endless data and solutions. honestly if he ended the book at chapter 120 or something it would've been golden.