Ah ah, I love how you still not provide a clear answer. Take it easy, I just thought it's funny you used IE and then I realized (maybe wrongly so) you were making fun of me.
Agreed, I immediately thought that homomorphic encryption was at play here or some other kind of computation on ciphertext, given the mention of "inferencing" in the title.
This is particularly relevant because the guy used Andrej Karphaty's "autoresearch" [1] approach, which is extremely powerful when applied to problems that generalize well to it.