Earlier quoted context omitted.
That's a counterargument to a different thing. Iteratively measuring loss is a way to reconstruct values. That's trivial to show for a single value If 5 gives you a loss of 2 and 9 gives you a loss of 2 then you know the missing value is 7. A model with enough parameters can memorise the training set in a similar manner. Technically the model hasn't seen that data by direct input either, but the mechanism provides th…
Yea, because "seeing" is also tweaking the parameters. Which this example is doing manually. So I don't understand how any one can make the claim that the model as not seen it. Because the internal transformation is similar.
By what mechanism do you propose the model observed the test set?