OK, I've rambled on long enough about possibilities of life in the universe (extrasolar life). Let's get on with speculating on extraterrestrial life, especially extraterrestrial sentient life. Is there a "sonnet" for sentient life? Why does sentience arise? Is it a part of the universe, another force, like gravity or radiation? If like gravity, it's a force that is part of the space-time continuum. If like radiation, then it arises "only" under certain circumstances - other forces, elements must come together to produce it. Either way, there may very well be a range of rules or laws for sentience. But it may be a rather large range.
For instance, is humor necessary for sentience? That is a topic I would like to discuss in the next post, and revisit from time to time. But now, it is way past my bedtime!