I think @OP is confused, Bitcoin may have a closed system idealism due to its finite supply but the system is often to anyone who wants to participate in solving blocks through mining, transaction process and setting up nodes. If Bitcoin is a close system then there would be no outside factors that can participate in the Bitcoin ecosystem.
Bitcoin is a closed system because it's not an invention, but it is a discovery. Stock market, and usd, are inventions, and what makes bitcoin a discovery is the concept of proof of work, and it is
closed because its not possible to rediscover it.
Satoshi discovered Bitcoin while looking at the command line of C++ and announced that he found Bitcoin to the masses. I think someone needs to work on the difference between discovered and invented.
Apparently, even the basic definitions of "invention" and "discovery" elude you.
True @OP makes me look for the difference between invention and discovery again just to make sure that I am not mistaken about what I understood about them

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And if it's a closed system, you have to agree with me that entropy is applied. Entropy means decentralization, common markets are not subject to entropy because they tend to centralization, but bitcoin tends to decentralization, and that means natural selection is working on bitcoin, because natural selection acts on decentralization.
No, I think decentralization is the opposite because it encourages participation from different individuals thus it defies the idea of a closed system. Aside from that anything programmed is not a natural selection process, it is a controlled process.