There's nothing poorly specified about Nietzsche's ideas, he just wrote deliberately in a way to be incomprehensible to people casually browsing his books, or looking for quotes to bandy about someplace like this. He deliberately says in a few places (effectively) "if you can't be bothered to read my entire works then you have no right to claim to understand my thought." It's a bit pretentious and a bit arrogant, but please don't confuse a New Yorker article wondering whether the overman is a "cyborg" with the consensus of serious Nietzsche scholars. He is not so unambiguous as English-speakers who've read 1 or 2 critical essays and skimmed half of one of his books would lead you to believe. (I've read all of his books multiple times, the big ones over a dozen times, and studied him for 5+ years in college).
There are lots of legitimate criticisms of Nietzsche. But saying "overman could be a very strong man, or cyborg??? lol we don't know" is a bad faith child's argument, imo. Overman (the man who continually self-overcomes) is a notable example of a very clearly articulated idea in Nietzsche's thought, and it has nothing to do with being stronger or more powerful than other people.
There are lots of legitimate criticisms of Nietzsche. But saying "overman could be a very strong man, or cyborg??? lol we don't know" is a bad faith child's argument, imo. Overman (the man who continually self-overcomes) is a notable example of a very clearly articulated idea in Nietzsche's thought, and it has nothing to do with being stronger or more powerful than other people.