1. A living thing cannot be more or less evolved. It can be more or less derived, meaning it differs from some basal ancestor in more or fewer ways. It can be more or less complex, which is by no means the same as more or less derived, nor do being more derived and being more complex necessarily correlate. But evolution doesn’t stop. Even when an organism changes very little over many, many generations, that is because those same traits that served its ancestor well are still beneficial or non-detrimental and thus still being selected for. Claiming something is more evolved because it is either more derived or more complex is like claiming a cubist painting is more painted than a Renaissance painting.
2. Likewise, it is impossible to reach the pinnacle of evolution. Evolution does not have a linear plot. It is a sandbox game. Our personal brand of human intelligence is glorious and wonderful and tremendous, but it was neither inevitable nor necessary. Again, evolution doesn’t stop. It is a constant interplay between species and environment, defined by birth, death, and change. A change in the environment alters the needs of the species. A change in a species alters the environment. Nothing is ever “perfectly evolved”, even for its specific environment, because every alteration requires alteration in response, even if that alteration is very small. There is certainly no such thing as a perfect species.
3. A change in the environment is a change in the environment. Until someone discovers or invents a form of true immortality, nothing we do can actually halt our own evolution- it can only change the course. As a general rule, the more members of a species who survive each generation, the better that species is doing, and the more diverse its genome, the less likely one or two catastrophic things will wipe it off the face of the planet. You don’t know what traits will be valuable for future challenges we face and what traits won’t be. If I remember correctly (I’ll dig up my notes later), the jaw was derived from an initially bizarre and useless mutation in the skull, and several of our ear bones were derived from what used to be part of our jaw articulation. So eugenicists and people who claim not to be eugenicists but use eugenics arguments can all fuck right off.
4. A single individual cannot evolve. Evolution does not occur on the individual level. It occurs on the population level. When a single individual changes to better suit their environment, that is adaptation, not evolution. Adaptation is of course a part of evolution, but it is not the same thing. This, combined with points 1 and 2, means you personally cannot become or choose to be more evolved than other people. That is not how anything works, at all, ever.
Thank you for your time, everyone!