Isn’t the purpose of all thought experiments to define something that is relevant to what you’re trying to philosophize about? “Fitting a narrative” is a thought-terminating cliché.

If we agree that there exists at least one thing theoretically whose invention would be unequivocally evil - without a morsel of moral justification, then surely there exists a moral spectrum on which all inventions lie, and the inventors (and builders) are not absolved of their sins by virtue of not having actually used their inventions. Maybe you disagree that even in the case of the Torment Nexus the inventor has no moral reckoning (yikes). Maybe you disagree that it’s a spectrum, and rather binary: Torment Nexus immoral, everything else moral (weird).

That’s why I invoked the Torment Nexus.