Spock has a tendency sometimes to make wild leaps of logic unjustified by the available information,

Spock has a tendency sometimes to make wild leaps of logic unjustified by the available information, and it’s even worse when Kirk eggs him on.

The flying pizza monsters of Operation Annihilate are pretty different to any other known lifeform. But they’re not even as different as, say, the Horta, and no one suggested that might have come from a whole other galaxy. It’s not weird to find life on other planets that evolved along a completely different pathway to humans; in fact, it’s far weirder that there are so many humanoids in the galaxy. So weird that the Preservers will be invented in season 3 to explain them.

But ok, let’s say the flying pizza monsters did originate from another galaxy. Imagine they infected a super-advanced species capable of traveling the 2.5 million light years from Andromeda, our closest galaxy. This wouldn’t really help this argument, because the same physical laws that apply here also apply in Andromeda. And even further afield than that; as far as we know, in the entire observable universe.

To get to somewhere with a whole other set of physical laws, you would have to go to a whole other universe. At least, according to some multiverse theories which explain that the reason the physical constants in our universe are so perfectly tuned to allow life is that this is just one of a multitude of universes all with different values of the key fundamental constants. Of course, if the flying pizza monsters are advanced enough to travel between universes, it’s weird that they can’t build their own ships in this one, but what do I know, I’m just a single-universe dweller.