FHE is the ability to encrypt some data and give it to a machine, which is then able to perform sensible operations on it without decrypting it (and thus ever l

FHE is the ability to encrypt some data and give it to a machine, which is then able to perform sensible operations on it without decrypting it (and thus ever learning the plaintext). The term you are looking for is "obfuscation". Either black-box obfuscation (which was shown to be impossible) or the indistinguishability obfuscation, which is what the article talks about.