Tzeentch, the weaver of destinies, the architect of fate, originates from the Warhammer 40K universe and is the god of knowledge, change, and evolution. However, I will take away the god like attributes and try to make tzeentch into an advanced alien species.
Appearance and behaviour
The species look vaguely humanoid and seem to have short stubby faces that sport no eyes and shark-like rows of teeth. They also have tentacle-like hair coming from the back of their heads but also have one tentacle-like appendage sprouting from each shoulder. Their hands only have three fingers as well as only having three toes and possess blue skin.
The species seems to be attracted to gold and blue materials and will often trade knowledge and technology for said gold and blue materials. Other than that, they seem not speak, preferring to sit crisscrossed and think over their “great plan”.
Despite being considered one of the oldest alien species, they are quite averagely advanced, capable of simple planetary colonization, and environmental manipulation. However, they seemingly have created two megastructures that make us question whether they are more advanced than they seem. The winged anem brain is a star-sized megastructure that acts both as a computer and an informational storage unit--essentially a Dyson sphere. It is theorized that this megastructure holds knowledge that even older races and species might not even know. The second megastructure is called the evolution machine. This megastructure stems from the desire to influence creatures on other worlds to evolve intelligence. They do this by changing the planet's environment slowly but slightly enough to induce evolutionary changes that cause the creature to become more aware and later intelligent. This process takes a very long time, but luckily the tzeentch have a outstandingly long life span, teetering from 500 to even 1000 years old.
Weirdly, where most advanced species have and end goal, the tzeentch will have some complex plans that will sometimes span eons, plans that look contradicting to themselves, and sometimes plans that will go against their own interest.
A recent information agreement has suggested that this species consider that the purpose of existing is only for gaining knowledge. The home world of the tzeentch suggests that over 80% of the surface is covered in water. It is theorized that the great plan has been going underway for untold eons, and is thought to have the singular objective of trying to know everything there is to know in their universe, store it in their megastructure, then send it off towards another universe to either continue its gathering of knowledge or to help out a random race.
Could such species feasible exist, if not, then why?