The kind of scientific innovations that are happening be it gene editing, neuralink, AI , Robotics etc. Based on that , its easy to imagine how the world is going to be 50 years from now. So, if you are making someting thats 2898 AD, it should be more advanced than 2100AD that we can already imagine. There should be things like different kinds of humans like those who can regrow or modify their body, those who merge with machines, people who completely turn into machines and start living ou