Mutants of the Main Universe?

Of course, all of this was still only Peter's speculation. No matter how reasonable it seemed, speculation was still just speculation. Even if it was 99% accurate, it merely meant it was "infinitely close to the truth." As for that remaining 1%... Only Doctor Foster's personal admission could fill in the gap. Unfortunately, Doctor Foster had kept something up his sleeve back then and had not recorded it in the experiment logs. If not for Peter's evolved, special Spider-Sense, he truly would not have discovered it!