Saying that there are infinite universes means that there are infinite types. You have infinite parallel universes. If there is a random number generator, that randomly chooses a number between 1 and a million, 999,999 parallel universes are created, which have a different number as a result. We are in one that has a number that the other 999,999 doesn't have. Then, we have different reactions from different people, from the number, and different numbers they were guessing, which already goes into trillions of parallel universes. Some do the random number generator again, making another universe where they don't. A million times a million is a trillion, thus trillions of universes are created. Some do the generator, again, and again, and again. It's a chain reaction, leaving to infinite amounts of universes. There are some universes where they spend the rest of their lives doing the random generator, thus every second 999,999 universes are created. If they do it for the rest of their lives, every second, until they die of thirst from the addiction of the generator, quadrillions of universes came from just one universe. Think of the random number generator as what everyone does in their everyday lives. Some quit their jobs, some slack off. You may say, "This just means that there are countless numbers of parallel universes, not infinite." Not so, as some universes are infinitely old, and there's another thing. Let's say you are having a test on your reflexes. Let's say you react in .2 seconds. Infinite parallel universes are created. Why? Just do the math. I'm thinking of a number between .2 and .3. It's .2384765836385638367583765. Reaction time can be just like that. .2, then another universe it's, .21, then .201, .2001, .20001, .200001, .2000001, and so on. There are quantum smudges, making it so that you can't tell the exact location, or the exact time, but there are universes that don't have that, allowing to tell the exact time it takes to react, which would make infinite universes. Parallel universes are one of the first steps to creating infinite universes. It wouldn't make sense to have infinite universes and not infinite parallel universes.