Linkin Park's level of popular success in the early years of this decade was nothing short of phenomenal. Their music in this period was actually very simple and formulaic: it could be reduced to a sum of elements such as throaty male screaming, repetitive but unrelenting rap, simple and powerful electric guitar chords, a single ballad melody resounding through the entire composition, a strict intro-verse-chorus-verse-chorus-bridge-chorus formula (with exactly tabulated systems of bridges in relation to the choruses), etc. If we took these elements separately, defined them 'scientifically', then fed them to a 'blind monkey', would the monkey, as you say, random noob, produce something that succeeds at the level of Linkin Park - no, rather, music that sounds like, and is 'as good as', Linkin Park? I don't think so. A media product is never simply a sum of its parts: in that very summation, something that is created is more than that. This is something that you can't explain if you try to import a purely mathematical / scientific mind to something so fluid, and try to 'define' what 'Fallout is', what the core of 'Fallout' is. NMA have been doing that for years, but you look at them arguing over the latest concept art and many of them still disagree with each other. That doesn't mean that 'what Fallout is' doesn't exist: it simply means that it is the wrong approach altogether to try and reduce it down to isolated essences which can be mathematically reconstructed. It's quite simply the wrong model to use.
Of course art, music, etc. can be analysed and explained. But all (good) analysis of art, for example, always relates any exploration of a single essence or component back to that whole which is more than the sum of its parts: that which is evident in the work of art itself. Same with Fallout. Now, the fact that it's ab it of 1+1=3? doesn't mean that the study of art or other media is considered to be mystical: that dichotomy between a 'scientific' taxonomy and a 'prehistoric' mysticity is entirely unfounded in this case, because that implies that everything has a scientific-mathematical order with which it is composed, and with enough study, enough technology, enough tools, one can dissect anything to find these independent, atomised elements which follow the general logics of science. That is inverse logic because we are taking the scientific model and applying it to Jack and Joe, and when it doesn't seem to fit, we say "it's just not very clear yet, let's keep going". Art can be demystified, explained, analysed, deconstructed: but because of the nature of art, the way to do it is not to try and define clear, independent, atomised characteristics and say art is the mathematical sum of these parts. That simply flies in the face of art as we experience it, just to satisfy a scientific model. Art and other media have to be analysed in a way that is conscious of this 'more than the sum, etc' and the fact that experience of art and media is always holistic in regards to who consumes it and how.
edit: Yeah, that was rambly tl;dr, sorry. But in relation to Fallout, really - it simply means that as Krezack says, it's more than just a sum of its parts, and therefore, making a Fallout sequel which recaptures that 'feel' of Fallout is NOT something a monkey could do. A monkey could reconstruct, say, a table from a blueprint exactly the same, but that's a table; a media product like Fallout is made in a different manner using different base elements which operate in a different manner, and a monkey, without the faculty to understand or adapt to that situation, would not be able to make something that recaptures that 'soul', if you like.
Conversely, this means that making a 'faithful' sequel in this sense does not mean that individual symptomatic elements, such as turn-based gameplay or 2D graphics, have to be the same. It would probably be easier if they were, and I'm sure Sand will come and tell me that for him, it's not FO unless it's turn-based (I think it was Sand?). But the 'feel, the 'soul', of a game is not dependent on all such symptomatic elements being exactly the same. That's why making a 'faithful' Fallout would not be a pointless, or silly, or simple venture!
<3