Book Review: How to Live Safely in a Science Fictional Universe by Charles Yu: Yu, the real Charles Yu (just wait, it gets more confusing), does a masterful job of using the established conventions of science fiction to tease apart the complex web of memory and emotion. With his time machine stuck in the Present-Indefinite tense for an indeterminate period, Charles provides a literal mirror to those of us guilty of drifting through our present without ever moving forward from the past.