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This is useless pedantry: by this metric absolutely nothing in the universe can be Turing Complete, and it's only a theoretical construct.

Turing completeness is a useful tool for the analysis of actual, real life computers and their programs, despite their finitude.

Of course.

That was supposed to be a sarcastic response to pedantry in the thread.

Turing completeness is a model, not reality. Choosing the right model is a judgment call.

I am sorry, I completely missed the sarcasm. Textual communication is hard. Your imitation of hn pedantry was so good that I fell for it.