Aren't we the normal ones for noticing everything??

It's interesting and I thought about it too. My idea, from things I've seen and read over the years, is something like this:

Most people think of their eye like a camera. You see with your eye, but the eye is a sensor and you see with your brain.

Your eye sends stream of data. It is high resolution. The centre is higher resolution and you have a blind spot in each eye due to the optic nerve, so you move them around. Your brain creates an image piecing data together.

It is a lot of information to process in real time. Even though you have a disproportionately large amount of your brain allocated to processing visual information it throws most of the data away. There is an interesting experiment that prove this with basketball players.

It creates a 3D mental representation of what is there, based at on edges and colour, there is pattern recognition. This is how you can reach out and pick something up or point without looking or get close. It is how you move around without walking into things, or throw things accurately.

If you close your eyes, open them for half a second then close them, then think about what you saw or tried to draw it, you'll notice how much detail and the sorts of things that get noticed a first glance.

If you look at a pile of books you won't notice the titles of each one in in a quick look, even if the image in theory has enough data and resolution. Over time you can fill in more detail.

I think difference between people is how much detail is in the models, how much you fill in by looking closely, and the level of detail that stands out as important and is worth noticing. I think it is a difference in degree. The more mental power put into image processing the less to put to other things, like communication. It is harder to talk when looking at something in detail.

Even if you notice more than most it is still only a fraction of what is there. I notice things other don't, but I still miss a lot.

To take short cuts you have pattern recognition. It is why you see shapes in clouds or faces in random pattern. It is to detect a tiger hiding in the grass.

You look for edges, which is why camouflage works because it breaks up the edges and the shapes spoiling your pattern recognition.

You are highly biased towards noticing movement, which is change in some pixels. This is a survival thing, to detect something coming towards you.

The more your nervous system is on edge, which is a lot of time in ASD, the more the movement, edge detection, pattern recognition etc. will be turned up.

Try observing if you see the same when relaxed and when anxious.

I think this is probably a major cause of difference in the real world. If you are more relaxed, the threat detection system is turned down, so your brain can put less effort into processing images. NT may just be more relaxed. 

It's interesting and I thought about it too. My idea, from things I've seen and read over the years, is something like this:

Most people think of their eye like a camera. You see with your eye, but the eye is a sensor and you see with your brain.

Your eye sends stream of data. It is high resolution. The centre is higher resolution and you have a blind spot in each eye due to the optic nerve, so you move them around. Your brain creates an image piecing data together.

It is a lot of information to process in real time. Even though you have a disproportionately large amount of your brain allocated to processing visual information it throws most of the data away. There is an interesting experiment that prove this with basketball players.

It creates a 3D mental representation of what is there, based at on edges and colour, there is pattern recognition. This is how you can reach out and pick something up or point without looking or get close. It is how you move around without walking into things, or throw things accurately.

If you close your eyes, open them for half a second then close them, then think about what you saw or tried to draw it, you'll notice how much detail and the sorts of things that get noticed a first glance.

If you look at a pile of books you won't notice the titles of each one in in a quick look, even if the image in theory has enough data and resolution. Over time you can fill in more detail.

I think difference between people is how much detail is in the models, how much you fill in by looking closely, and the level of detail that stands out as important and is worth noticing. I think it is a difference in degree. The more mental power put into image processing the less to put to other things, like communication. It is harder to talk when looking at something in detail.

Even if you notice more than most it is still only a fraction of what is there. I notice things other don't, but I still miss a lot.

To take short cuts you have pattern recognition. It is why you see shapes in clouds or faces in random pattern. It is to detect a tiger hiding in the grass.

You look for edges, which is why camouflage works because it breaks up the edges and the shapes spoiling your pattern recognition.

You are highly biased towards noticing movement, which is change in some pixels. This is a survival thing, to detect something coming towards you.

The more your nervous system is on edge, which is a lot of time in ASD, the more the movement, edge detection, pattern recognition etc. will be turned up.

Try observing if you see the same when relaxed and when anxious.

I think this is probably a major cause of difference in the real world. If you are more relaxed, the threat detection system is turned down, so your brain can put less effort into processing images. NT may just be more relaxed.