No, that is not it at all. It is not just less information in the quantitative sense. That is because it is not the simplistic arithmetical extrapolation of the same information multiplied times the number of individual factors to be considered, which is what you attempted to say in your original post. It is qualitatively completely different information on many levels requiring equally different decisions to be made for very different reasons.
An example would be to say that drawing a circle is art in the same way that a painting complex landscape masterpiece is. Sure, in painting the masterpiece the artist probably drew a circle or two, but did he or could he have composed the entire work by ONLY drawing circles, just many more of them? Not likely, as it's not a simple matter of plurality. He had to do a lot of very different things in completely different ways to construct his artwork than the circle drawer did to draw his circle. Therefore, I could say a circle is a small component of his masterpiece, but I could not say his masterpiece is just a circle multiplied....
Your confusing SA and knowledge.
If you represent every bit of information related to you in combat by the letter A, all Cons by an additional number, the math is simple. A+B+C+D=F. Less information (1v1) would look like A+B=C. Zero information (1v1) still looks like A+B=C. There is no difference, other then your over analyzing the information.
Your SA is directly linked to your genetically disposition attention span, which is finite.
You can all 100fold cons to a scene and you will only absorb what your capcity is, nothing more nothing less.
Its knowledge that makes the difference, not SA.
IF you have 2 people with the exact same capability of attention (SA) Yet one can not win 3v1 and the other can. Is it SA that is lacking or Knowledge. The problem SEEMS more compounded to the one lacking the knowledge. Yet not so to the one that has the knowledge.
Each factor, be it a fly on the wall, or an NME fighter ADDS to the equation, it does not multiply it by X power. Its not quantum physics, don't make it into it.
I have served in combat, as many here have, trust us, its not as complicated as your making it out to be, nor is it as generalized as your trying to use it. Over analyzing it will only give you grey hairs.
Its simple addition, I had 1 opponent, now I have 2, these are my choices, make a choice, execute choice, start the Loop all over again.
Perfect Example:
AKDogg was helping me with some ACM one night. A guy upped and came over to Jump Dogg, next thing I knew, it was AkDogg in a 3v1. He killed 2, and sent one home wounded. What was the determining factor here. He was talking to me all the while, so do you think with the addition of more cons, that his SA was stretched, or severely compounded with the addition of 2 cons? No, it wasn't, it required little more SA then it did with 1v1. What the difference was, is Knowledge. To me, who has great SA, but crappy ACM knowledge as far as how to counter maneuvers, 1v3 seems overwhelming odds.
When I jump into a Furball, I can see the guys coming in on me and I choose what course I deem needed, or what I am getting myself into. I am at this point trying to obtain the knowledge that is needed to succeed in that case. MY SA, however.. I saw Death coming before I even dove down to get in the furball before hand.
To Dogg, who has the knowledge, it was simple. This tells me that SA is not compounded but variables are simply added, only the process of decision making in reference to your level of skill is what seems compounded.
