Complex sentence: In the episode, "Preboot", it was revealed there are other humans outside of Ooo, then at the end of "Reboot", Finn destroyed Susan's cybernetic implant, making her fully human in the process.
Split into simpler sentences: In the episode, "Preboot", it was revealed there are other humans outside of Ooo. At the end of "Reboot", Finn destroyed Susan's cybernetic implant, making her fully human in the process.