It seems reasonable to hypothesize life in a Europian ocean along the lines of the major section of this article. Going beyond to imagine intelligent life and looking for ways to make heat-generating technology is, however, a huge anthropocentric leap too far.

Let’s consider the fact that life on Earth has been around 3.5 billion years and in all that time we’re the only species that has developed such technology and we did so only because of an extremely unlikely series of events, most of which had nothing whatsoever to do with us (the rise of mammals after the great extinction event 65 million years ago, the reduction of forests due to the evolution of grass, and most recently the development of agriculture thanks to a mutation in the DNA of certain grasses that allow the germ to more easily detach from the stem and thus allow threshing). It is utterly implausible to posit tool-making intelligent life elsewhere merely because there are a few chemicals and a heat source to provide liquid water.

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