You're wrong about steroscopic vision past 10m... I've read more than a handful of accounts where the best pilots at spotting distant aircraft were the ones that could (to paraphrase) "focus on infinity" or "unfocus their eye paths" while scanning around so they would be better able to spot stuff further out.
A single spec in the sky is easy to "blur out" and not notice if it's 2 miles out and your eyes are crossing (i.e. "focused") at half a mile.
Anybody defending "no icons" as realistic is just plain wrong, and doesn't understand the facts. We've had countless threads about this over an entire decade of debate. "no icons" loses every time.
Somebody posted a picture from an airline flying 30k-40k over some suburb in texas, clearly showing every detail from cars on the road to bright clear swimming pools in many yards.
Here's Niagara falls from 40k:
http://www.panoramio.com/photos/original/605170.jpgNote that even when blurry the details allow you to see cars and trucks, roads, individual houses and the gaps between them.
REAL pilots have recounted in MANY threads how the human eye can see planes VERY clearly out to certain distances. Where AH has 2 black pixels, you'd already know the plane, it's orientation, colors, and any number of other details.
I've lived near airports (large or small) a number of times in my life. I live under the landing pattern of a small airport now (for the past 3-4 years). You can see EVERY detail on these small planes. Cessnas, some small twins, the occasional lear jet or two. You see everything from sharp color patterns, panel lines for the flaps and (when they're dirty/mucky) all along the belly the panel lines are distinct, you can tell the gear is out, what way it is facing, get a sense of its drift, its descent/ascent, it's acceleration (yes, sometimes they have to gun it a bit and you see them pull forward).
All that and I'm an amature! A real pilot ( or a real fighter pilot, ) can see WAY more than the crap you guys tout as "realistic".
Manuvering for a kill only to find at 200 yards it has RAF roundels on the wing is a totally absurd way to think "this replicates the human eye!"
I wish somebody would find the thread where somebody posted a no-icon screenshot of a plane within guns range or them during a dogfight, asking/polling forum readers what the plane was, it's distance, and orientation (facing you, heading away, etc). Almost nobody got it right. It was a good example of why "no icons" always fails in both gameplay and real world comparison.
P.S. I wonder if most of these "no icons" request come from folks fooled by IL2 "full switch" servers... They are also not realistic. Even the overly-complicated and artificially over-worked TargetWare had an icon system for IDing and ranging aircraft. Even THOSE guys realized that the human eye is way better than "no icons" can provide.
EDIT:
LEGAL DISCLAIMER: I'm not saying you can't enjoy a no-icons event now and again. Definitely SOME of you had a blast. However, trying to change the entire gameplay system of the FSO to meet a false idea of how the human eye works doesn't sit right with me, and I'll speak up to the contrary. Again, not saying "you can't have it your way" -- just saying "don't force me to have it your way too"...