A ‘Wallace’ / ‘Wall-less’ journey
Candidate 108 is named Wallace. I believe this individual is crossed-out, but is also the individual Jacob was referring to in the Lighthouse, saying the individual was coming to the island.
I believe this individual is Desmond, who could be referred to as ‘wall-less’ in terms of his ‘abilities’.
Also, the summation of the numbers is 108, which could possibly mean that the combination of the candidates (represented by the numbers) equals (creates) a ‘wall-less’ reality.
What I mean by this is: Nemesis gets the candidates together (sum 108), they fly off in the plane, hit the ‘turbulence’, and the boundaries/walls of reality fall away — and they go from the ‘true’ reality, to the ‘alternate’ reality (similar to how they got to the 1970s).
Thus, their ‘wall-less’ journey.
By getting to the alternate reality, Nemesis escapes the island and is free to roam.
I also believe the ‘true’ reality will fade away if this occurs, thereby ‘ceasing to exist’ per Widmore’s statement.
Widmore knows this — as does Jacob, possibly — and Widmore knows of Desmond’s/Wallace’s ability to move from one reality to another, and somehow wants to use this ability to prevent Nemesis from succeeding.
I know the ‘Wallace’/‘wall-less’ thing may be a bit of a stretch, but…..
Alpert: change the ‘l’ to an ‘i’ (lower case l looks like a capital I), rearrange the letters, and you get = pirate. So…..hints are out there…. Â