Originally Posted by Amnesia
To me, that's two worlds. Two realities, two worlds.
OK, perhaps a matter of semantics, but the poster I was quoting had said "dream world' and "real world" -- now semantically that identifies two worlds, but I think most of us recognize that those same words could characterize our one world, where we have a "real" life but also a dream "life".
So in that context, those two worlds become our one, just as I allowed for two realities (as opposed to "real" and "dream") to be two parts of an otherwise unified/connected construct, or world, we are being shown. My impression is that these two parallel pathways are two realities, not one a "dream" and one "real" -- neither looks or feels like any dream I've ever had -- too rock solid clear, logical, lucid for a dreamlike state. And my sense is that they both take place on one planet, or the same world, or the same psyche, though you could semantically bifurcate the dichotomy as "two different worlds altogether"... if that suits your whim of the moment....
But please note, I also allowed that it could be whatever the writers wanted it to be -- maybe this is two different, though analogous, people on two entirely separate planets or planes of existence. My point was that we really have no idea yet what we are seeing, therefore the writers certainly are not limited as to how they could make this run for years.
Example: two seasons he alternates between dead son/wife, next two we start to see evidence of two dimensions, next two seasons they introduce a third that becomes known as the "sideways".....