Dalo

I am not sure I understand what you mean. Maybe you could elaborate?

and how do you explain that?

But that is an answer I have in no way rejected. It is in fact quite obvious that there is only one reflection of an object on a reflecting surface, and that all shadows point in the same direction. So, when you are trying to prove it you are, as far as I am concerned, proving an evident empirical fact. The question I am asking is how this obvious fact relates to the idea that light rays, in this case sun rays, are propagated in all directions?

What are you saying then? We are talking about physics, whether all sun rays have the same direction, as seems to be suggested by the shadows pointing in the same direction. You are entering a discussion about differences and similarities between brain and cameras, which I suppose will help us understand why the sun rays behave this way, or at least why we have the (optical) illusion that they do?

Are you saying that even camera pictures should be considered as brain/mind images? That it does not make any difference whether we are registering an event through our naked eyes or through cameras?

The accepted theory is that the brain learns what is unchanging(nose) and filters that out for you. Not sure I totally agree, but brain definitely filters using some methodology. This is rather strange. It seems like you are basing Physics on Psychology/Physiology. Usually, it is the other way around, Physics being the ultimate science that explains everything. Why not simply use cameras and explain the images? You will still see only one reflection, and all shadows projected in the same direction, wouldn't you?

Again, I have no problems with reflection, nor with Optics in general. I am just wondering how to make them fit. If light rays are propagated in all directions, why don't we get multiple shadows and multiple reflections? https://en.wikipedia.org/wiki/Homunculus

This sounds like a homunculus-argument. How would the brain know what is extraneous information or not? Instead of images, take simply shadows. Sundials are possible because all the sun rays go in one direction. Otherwise, we would have multiple shadows, just like when we have multiple lamps.

The way an image is formed through a lens, a pinhole, or our retina assumes that an infinite number of rays propagates from each point on the object. That is why an object can be seen from an infinite number of positions. That is also the explanation used in Optics to explain why images can be sharp or blurry. That is why I have difficulty with linking both groups of laws: the one depending on an infinite number of rays coming from each point, on one hand, and the fact that we are always seeing only one object on the other. The latter being explained by the laws of reflection mentioned in the link above.

But you can only be blinded by the reflection if you stand at a certain angle of the reflection.

I don't know if this subject belongs here, since it concerns less experiments than some observations I cannot explain using the laws of Optics. Only one sun reflected on the surface of a pond Why is that? Shouldn't we see an infinite number of suns on the surface of the water? Only one tree on the surface of the water This is the same problem. We can see the single reflection of the tree. We can even go around it, and it will show us the same tree, seen from another perspective. Can anybody explain how this is possible?