In the grand scheme of the universe sentient life defines the question. Without setient life, the ability to formulate questions concerning life, the universe and everything would be impossible. Would they still exist without sentien life to question them? Are the questions formulated by carbon-based life forms any more significant that those proposed by silicon-based life forms?

Sentient life is distinguished by its self-awareness. Many would consider sentient life to be higher life forms than non-sentient life, though others would disagree. Some have argued that creatures such as dolphins and certain primates should be considered sentient. In science fiction, sentient life has been expanded to include beings such as androids, crystalline entities, and blobs.

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