It makes perfect sense to read in the afterword of 10 Billion Days and 100 Billion Nights that one of the big influences on Ryu Mitsuse (the author) was Stanislaw Lem. The story is about Plato and Siddhartha and Jesus of Nazareth (one of the three is the villain) dealing with Titans and Orichalcum, the death of all humanity, colliding galaxies and the existence of entities beyond infinity. It is fucking marvellous.
At first I thought it would be more like The Years of Rice and Salt, but 10 Billion Days is not nearly so grounded in the life of people being reincarnated. It’s the kind of book that you can sort of float through because the plot isn’t grabby, but then you shake out of yourself and ask what happened and you realize you’re somewhere distant and cosmic. I don’t know how much of that distancing comes because this is a translation, but it doesn’t really matter. It’s a book about cyborgs looking for god and I liked it a lot.