Man I have exactly the opposite reaction: the last third at least has some nifty high-concept worldbuilding even though it doesn't have nearly enough room to get really explored. The first two-thirds are an absolutely cringe-worthy example of "if only the idiot normies would shut up and let the engineers run everything" nerd supremacy at its very worst, including a painfully obvious Elon Musk stand-in character saving humanity, which was a bad idea in 2015 and has aged even more horribly since.