Life as No One Knows It: The Physics of Life's Emergence by Sara Imari Walker

Not the first one to seek an answer which defines life.

Its a century old question but as our knowledge grows the answer gets farther and more complicated. Imagine it taking it to a cosmological level.

We're never sure if the basic laws of physics and chemistry will apply to an eco system which is different from ours. How can we be sure that the way define the life on earth is not going to follow it. Are bacterias or cells the basic component of life like we've sub-atomic or even sub-nuclear particles the basic component of matter? Consciousness has been the biggest qualifier to call for the life but with AI being more and more independent, is that the case any more?

This small speck called Earth has been the only place which has any sign of an intelligent or otherwise life. It sounds very common to define life which mirrors the life as we see it around which is why all the aliens are always a mirror image of humans at least in nature if not in feature.

We don't need to agree to a frame work for defining life but think about the people who stay awake for this question.

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