> possibility of artificial life at places other than planets, or made out of stuff other than carbon.
I have never heard anyone in physics describe silicon-based (or other) life as "artificial life". There is nothing more or less artificial about silicon-based life compared to carbon-based life. The best description for "artificial life" I can think of is life that is explicitly created by other life; second-order life. I am also not confident that humans aren't some higher-order life themselves.
I never said anything about likeliness, so I'm not sure who you are replying to. I don't care if carbon-based life is more abundant than silicon or methane or insert something else based life. If life emerges due to nothing other than the forces of nature, and not because of other life, then it's life. It's completely absurd to call silicon-based life that emerges naturally on some other planet "artificial". In fact, "natural selection" and "artificial selection" are two terms coined in biology for this exact distinction: that life can influence the outcomes of other life.
I agree, if something satisfies the conditions of life, then it's life. The distinction between artificial life and non-artificial life is completely anthropocentric. I could even argue that "artificial selection" is a loaded and meaningless term.
Unpopular opinion, but ALife is a stupid term. I think the people who coined it don't know anything about physics, biology, or chemistry. Probably just AI/ML/Robotics people who figured out how to do black-box calculus and think they know everything about the field of intelligence now.
I have never heard anyone in physics describe silicon-based (or other) life as "artificial life". There is nothing more or less artificial about silicon-based life compared to carbon-based life. The best description for "artificial life" I can think of is life that is explicitly created by other life; second-order life. I am also not confident that humans aren't some higher-order life themselves.