I am not sure about Jobs but it seems like Zuckerberg had already founded Facebook before he met with the old timer. So he was already onto something.
On another note I must say that although the phrase "to invent the future you must understand the past" (another popular phrase is; "Those who don't understand history are doomed to repeat it") I don't believe it's true. In fact Silicon Valley is the perfect example of why this is not the case.
At least from all the things I have bean reading up on, with regards to the history of Silicon Valley it started because of some demands for computing power and was cemented with the semiconductor which then ended up creating the real reason why Silicon Valley kept attracting talent. (you could probably go even further back and claim that the "Manhattan Project" was as important for SV too.
So the "real" reason SV was popular was because a lot of factors went into place none of them by design.
In other words. You can't design a silicon valley because it wasn't designed to begin with. It evolved from a number of factors and "after the fact realizations" which are not possible to copy.
And so whatever becomes the new SV will not be designed either, it will evolve when the right circumstances allow for it.