4.5/5 stars All These Worlds is the third book in the pop science fiction Bobiverse series following a post-human computerized starship intelligence. With greater responsibilities comes more Bobs, and each clone has to deal with humanity, the other sentient species they have encountered, and the threats that have discovered along their way. The Others have harvested a lot of other planets and Earth might be its next target, so the Bobs have to finish establishing habitable colonies, evacuate every human from Earth, and find a way to defeat the Others. But then there’s also the rogue Brazillian probe to fight off, the Pav they have to relocate, and the Deltans to protect; and all while dealing with the potential losses as the people they have met grow older. This is probably the best Bobiverse book yet. It is far more emotionally investing, especially with its theme of loss as the Bobs’ immortality as an AI overtakes the inherent humanity of everyone he has grown to know and love. There are some sad and moving moments that elicited some tears from me. Aside from those though, the book continues to maintain its humor and light tone with the many Bob personalities shines through in their slight variations. There might have been a bit too much quick shifting of perspectives between Bobs and their respective divergent plotlines, but everything mostly did tie in together by the end. While not really a finale, this could have served as the final book in a trilogy as it closes out the many plot threads the first two book opened while leaving just a few open for future installments (there are two more already). Ultimately, All These Worlds is a satisfying finale for the first three Bobiverse books.