Somebody in the INTJ group of Facebook asked a question "What is Life?"
I copy-paste my answer here, in case you find it interesting.
If we take an abstract perspective on the history of the Universe as we know it, we can see that there is an inherent capability of this "construct" (the Universe) to increase its organizational complexity. From a soup of matter, to revolving galaxies, to planets of different types, to chemistry on the surface of the planet, to organic chemistry, to single-cell organisms, to plants & animals, to mammals, to homo, to homo sapiens sapiens... arriving at the epitome of evolution and complexity... the human brain.
This is the single most complex organ/system in the known universe.
So if you're still with me, and you accept that from our observations of known history till now there is a clear trend inherent in the laws of the universe to produce increasingly more complex organizations, then... life is simply the latest "vehicle" of this Law towards further increases in organizational complexity.
If at some point in time humans discover true Artificial Intelligence and manage to create superbrains that surpass in complexity our own (and can network themselves, and never die, etc), then the latest vehicle in the progression of organizational complexity of the Universe will cease to be Life and will be something else (e.g. the self-improvement of undying-and-thus-non-living AI).
