|Do we need technology to create another reality?|
The storyline of Fringe doesn't go into detail about how this other dimension came into being, but often such a phenomenon would be explained as two different branches splitting off from from the same trunk. Some event happened one way in one reality and differently in the other, and that distinguishing event was the catalyst for the two alternate versions of the world developing differently. One determining point split the two different incarnations of reality and sent them off in subtly different directions. For more detail about the way this is presumed to work, you can check out the Many Worlds Interpretation, which is a thorough and widely accepted model. Essentially, the assumption is that any time multiple outcomes to a situation are possible, all of the possibilities occur; we just witness one and keep moving forward in our experience.
|A "Dual Worlds" model|
Admittedly, that would make for a difficult story on prime time television. In life, however, it can pay off to recognize that there are more than two possible outcomes. We often have many more options than what we allow ourselves to consider. When we look beyond the immediately obvious, our creative minds can get engaged in seeing possibilities that might be more ideal than anything else. Some people believe that there is no way around their destiny, that Fate will carry them toward whatever is supposed to happen no matter what choices they make. I prefer to claim a certain amount of personal responsibility for the direction my life takes, and with that in mind, I rather like the idea that there are always more options and possibilities than I might see at first glance.