Indirectly, sentience does imply the existence of life. Sentience means that sensorial perceptions are being interpreted consciously, and, of course, the basic life initiates with an organism awareness of its own existence; life resides at the edge of consciousness.
…which implies that it reproduces asexually and thus is incapable of the most unbridled, passionate form of ecstasy known to man. Not very fun, nope, not at all. My deepest sympathies for Von Neumann devices, I hope that whatever masturbatory actions they use to please themselves are sufficient to satisfy their latent sexual impetus.
But it is necessary to perpetuate life. Since every living being known to man is subject to death and thus has a finite existence, the ability to perpetuate life beyond a particular individual’s own life span is a necessity for the long-term survival of a species.
As to the points in the OP, I am pretty sure that Darkcool is familiar with the process of stellar evolution, he just wants to speculate about other possible explanations not covered by the existent scientific body of knowledge. I assume he is familiar as well with the Gaia hypothesis that proposes that earth is a leaving organism.
I, for my part, don’t believe that stars, planets, and celestial objects in general are conscious entities that have a direct saying in the way they evolve. They are instead forced to inadvertently function according to the arbitrary sets of laws and constants that govern the universe. Of course, that is as far as we know, eventually new discoveries might change our conceptions regarding the universe in general and stars in particular.
Even though I am not in agreement with the theories presented by Darkcool, I must say that I appreciate the way he thinks. He sets himself free from the chains constituted by society’s paradigms and accepted dogma and, having armed himself with intellectual flexibility, allows his imagination to dip into the mysterious confines of the undiscovered, thus providing interesting speculation that can only be rebuked on the grounds of CURRENT scientific knowledge or generalized perceptions, bu cannot be decisively and categorically put down.
And yes, the scenarios he outlines are plausible, however unlikely they might appear. I believe it was Kant who once set for himself the task of coming with a piece of knowledge that will forever escape human comprehension. He reasoned that, since stars were so far away, we would never be able to traverse the space that separate us from them and thus will never know their composition. Little did he now about spectroscopy back then…
The point is that knowledge is dynamic and subject to constant refinement. Human spirit is curious and attentive to detail. Evolution has given humanity a great deal of intellectual capacity. In the future, if the human race is still around, many of the secrets that lay out there in the farthest reaches of space or even right here, in front of our unperceptive eyes, might cease to hide under the veil of mystery that surrounds them now; instead revealing magnificent scenarios and conceptions impossible to accept, or even visualize, at such an early stage of our intellectual development.
As such, openness of mind and speculative character must accompany us in this intellectual journey we are embarking on. Denial of speculative proposals based on the grounds of psychological perceptions or sensorial and technological limitations act only as constraints to the prowess and enlightenment of the human race.
And, since I have totally deviated from the subject, I invite you to read the following posts, which are more likely to contribute more to the discussion than this small dissertation of mine on the limits of human thought.
PD. Darkcool, If you like that sort of speculation, check out the Fantastic Four comic books. One of their nemeses, Galactus, is a planet like organism that feeds off the energy of living beings.