Re: Robots have souls.
Mhmm. That may be a proper and scientific definition of life, so props for that much, but it just doesn't mean much to me. An advanced robot could theoretically do all of those except number 1 just fine. And then it starts to seem similar to an Eskimo saying that a teepee isn't a house, because he's never seen a working house not made out of ice before. Does everything it should, but achieves it in an alien seeming way.
I have to disagree with you. To be able to "grow" and develop one must first be made of cells. Evolution occurs the same way as does reproduction. There
may be organisms out there whose basic foundation is silicon because it is very much like Carbon in the way it is structured, but Carbon, Hydrogen, and Oxygen are the foundation blocks for what we call "Carbon-Based" life.
But life is Organic and without the Organic molecules (like Carbon or perhaps maybe Silicon) you can't have life. I never took Organic chemistry, but from what I've heard from my friends the building blocks of life are insanely complicated and unless you have the right combination there is no life.
Replacing carbon with Iron or steel or copper doesn't make something alive. Those things don't have the qualities that let them bind in the same way that Carbon does.
I very much like this
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. It explains the unique properties of Carbon very well (better than I can, lol). The other article about the importance of water is also enlightening.
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too. Though the one about non-cellular life states that this encompasses viruses, it is currently theoretical and viruses still hover on the edges of "life" and are still not considered true living things.