Kojima terminó de leer “Simultaneous”, de Eric Heisserer, durante el vuelo. Explicó que la novela comienza con la reencarnación y la regresión a vidas pasadas y se entrelaza después con una serie de asesinatos; destacó como singular su concepto de «vidas simultáneas», en el que varias personas de una misma generación comparten una sola alma. Dijo que la obra se apoya menos en su mitología o construcción de mundo que en un impulso narrativo cinematográfico, al estilo de Nolan, y que también resulta cinematográfica por enfrentar la amenaza de un asesino en serie desconocido mediante un investigador, una consejera y un paciente corriente, en vez de una gran conspiración o institución gubernamental.
«Finished reading “Simultaneous” by Eric Heisserer during the flight. This is the debut novel by the screenwriter best known for films such as “Arrival (2016).” The story begins with reincarnation and past-life regression, then becomes intertwined with a series of murders. Pursuing an even more sinister serial killer is an investigator from the Department of Homeland Security’s Predictive Analytics Unit, giving the novel plenty of “The X-Files”-style appeal as a science-fiction thriller. What makes the book unique is its concept of “simultaneous lives”: rather than focusing on past or future incarnations, it imagines multiple people sharing the same soul while existing in the same generation. The novel is driven less by its lore or world-building, but rather by its cinematic, Nolan-esque narrative momentum. It also feels cinematic in the way the threat of an unknown serial killer is confronted—not by a vast government conspiracy or institution, but by an investigator, a counselor, and an ordinary patient who find themselves drawn into the fight.»