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So they changed it.
Needless to say, i dont think many people could beat a Stealth Game if the Guards would behave truly Realistic.
But, now I want to play the Devil's Advocate and defend this game a bit.
You see, psychologists have actually determined that our attention is much more limited than we even feel subjectively. If you extend your arm in front of you and put up your thumb, look at your thumbs nail, that is the size, area, in your visual field in which you have high resolution, your peripheral vision is actually very low resolution, it can spot movement, but not detail.
The reasons for why we "see" - or think we see - a more complex and detailed picture of the world are interesting.
For instance, our eyes "jiggle" a bit, the saccadic eye movements are fast and keep building up in a mosaical way a fuller picture by bouncing around, taking snapshots from different areas in our visual field, the brain edits out and composes the final image which we see. But our brains only consturct simple notes about what is going on in each image it receives from the retina, it makes assumptions about continuity for instance, so if a change occurs between our eyes bouncing to another area of focus to take in more detail, unless it violates what is assumed to be in detail, everything else, and what was earlier in focus, can be missed, easily.
Psychologists refer to Inattentional Blindness and Change Blindness. These are not some syndromes, but phenomena that psychologists document in all of us - No one can escape many of the most stark blindspots in our attention. They follow from the simple biology of our eyes and their specific detail cells and how our brains handle processing the incoming information.
(That spot in which detail is constructed, well, we have a blindspot which is pretty much just as big in our field of vision, due to our ancestors evolving from creatures having their photoreceptor cells backwards in our eyes, so that the nerves have to travel back to the brain through an area in the middle where there are no photoreceptors. We don't notice this blindspot because our brain compensates with such easy tricks like the saccadic eye movements. You can find tricks on the web on how you can "see" your blindspot, like this:http://tinyurl.com/ydyd39)
These quirks of our attention go by unnoticed because they are simply not processed by our brains when we construct the image of our world. And being conscious of these faults in our attention will not fix that, well, not in any easy way, because our conscious processes are simply not wired with our visual systems in such a way that we could change the way in which we process information in this system.
Inattentional Blindness is slightly different, but related to, Change Blindness. In Inattentional Blindness, you will find that what you are attending to in your awareness is smaller than it feels, the brain doesn't process a lot of the background in our focus, but makes cheap assumptions. This is because information processing is actually very difficult and messy; we are being bombarded by billions and billions of photons each flash of a second, so much information is readily available that that it would take too long to go through all the data provided, a second can be the difference between life and death even, if you think about moments like when being stalked and pounced upon. So what happens is all creatures have evolved to try and only focus on that seems like the most rich information, the most relevant to their daily lives, in the nitty gritty details of eyes this can be seen with how once the brain notices that an area in the visual field has repetitions, instead of processing individually to construct from the repetitions the smooth picture, it goes ahead and jumps to the conclusion, builds assumptions of the way the world is constructed (many assumptions are inherited, the creatures that had the propensities to make fast, cheap and moderately accurate rules of thumb about their surroundings had an upper hand over those who didn't, brain power isn't cheap, and what works is passed on, as long as it gets the job done).
Here, try this experiment: http://youtu.be/vJG698U2Mvo
Change blindness is about one cheap and effective assumption the brain makes about the world: the continuity of scenes we process and not assuming big changes taking place each moment we blink and are effectively blind to the world.
Here's another experiment: http://youtu.be/6JONMYxaZ_s
The most startling account of how impaired we humans actually are in terms of our attention came from a book by Daniel Dennett, called Consciousness Explained. In it, he recounted his visit to a lab to see an experiment which he was allowed to perform as well. They had their test subjects sit infront of a computer with the task to read some text, however, they needed to fix their head so that a lazer could bounce off their retina, this lazer was harmless and not even noticed, the point with it was that it allowed the computer to track the subjects eye movements. The human eye behaves in predictable ways, and bounces ballistically around, so the computer computed that the next time the subjects eye would bounce as they read the text on the screen, the computer would use that window of opportunity to change what was on the screen. The results were that if you were sitting infront of the computer having it predict your eye movements, you wouldn't notice anything strange, the text would seem normal and coherent and sensible. However, anyone else would see a computer screen of a constant sea of garbled mess running by like matrix symbols running along the screen.
All of this was merely to suggest that how ridiculous the AI seems in being blind in many instances, I assure you the reality of human vision, attention and awareness can be bafflingly shortsighted as well, we just happen to not notice it because being blind to blindness is one of the inevitabilities of not even having dedicated systems in our brains which would attempt to compute what is missing in our information (a topic of intense fascination to me, Thomas Gilovich in his book How We Know What Isn't So, wrote really clearly about the odd logic of being capable of compute what isn't there, and so what isn't there isn't computed, and we don't 'experience gaps', because 'experiencing gaps' is precisely what computing the nothingness would be like).
So perhaps being stealthy can make our unawareness more startling and appear like stupid behaviour, when in actuality it is just humans behaving like they always do: assuming everything is normal. I have a motto which follows from the science of human fallibility: How can we possibly expect the unexpected, when we can't know what unexpected to expect?
Your attitude is unhelpful.
Oh I see, it is my fault for thinking I was adding something constructive and possibly interesting to people of a curious mindset about the nature of mind and brain.
If you have a problem, explain, or if you found something confusing, ask, or if you couldn't give a s**t, walk away. What on earth do you and russwing69 possibly think you've gained by writing uninformative comments which add nothing to the dialogue?