Kelvéns
Kelvéns are a hypothetical biological entity proposed in speculative fiction. They are often depicted as beings that exist in a non-corporeal state, or at least a state that is fundamentally different from our understanding of physical matter. The concept of kelvéns typically involves an existence that transcends traditional biological limitations, such as mortality or the need for conventional sustenance. Their nature is often described as being tied to energetic or informational planes of existence.
The origin of the term "kelvén" is usually attributed to specific fictional works, though its usage has