Visual Perception.

[Beanz]

What are you trying to prove Alpha? Enlighten us.

[Alpha]

What are you trying to prove Alpha? Enlighten us.

Just inquiring into the geometry of visibles.

[NoSavingByTheBell]

Consider also eerie examples of when you perceive
movement that is not real. Have you ever noticed
how the moon appears to be moving eerily across the sky
as clouds pass in front of it on a cloudy, windy, eerie night?
A similar effect can occur when you are sitting in a
car at an eerie stoplight and the vehicle next to you starts to
move forward. For a moment you may feel that you
are moving backwards. This is despite the fact that
your vehicle has not actually moved and the adjacent
vehicle is the source of real movement.
@Alpha

[Alpha]

Consider also eerie examples of when you perceive
movement that is not real. Have you ever noticed
how the moon appears to be moving eerily across the sky
as clouds pass in front of it on a cloudy, windy, eerie night?
A similar effect can occur when you are sitting in a
car at an eerie stoplight and the vehicle next to you starts to
move forward. For a moment you may feel that you
are moving backwards. This is despite the fact that
your vehicle has not actually moved and the adjacent
vehicle is the source of real movement.
@Alpha

Yes the senses are not always reliable. It is much better to test the physical nature of tangible substances.

[Alpha]

The laws of perspective are rooted in geometrical optics and not, as widely assumed, in rules and conventions of “realistic looking” painting, nor in the art of delineating 3D objects onto a 2D planar canvas, paper or screen.

What physical laws and facts actually define and determine perspective? Are these real physical laws, or just theories or only conventions? Are they demonstrable or hypothetical? Are the laws actually correct? Are they confirmed in reality by common sense? Are the applications of any such laws, fully understood and correctly practiced?

[NoSavingByTheBell]

Consider also eerie examples of when you perceive
movement that is not real. Have you ever noticed
how the moon appears to be moving eerily across the sky
as clouds pass in front of it on a cloudy, windy, eerie night?
A similar effect can occur when you are sitting in a
car at an eerie stoplight and the vehicle next to you starts to
move forward. For a moment you may feel that you
are moving backwards. This is despite the fact that
your vehicle has not actually moved and the adjacent
vehicle is the source of real movement.
@Alpha

Yes the senses are not always reliable. It is much better to test the physical nature of tangible substances.

Alpha I agree, but dont we need our senses to read and interpret the tests? It is a Catch-22.

[Alpha]

Consider also eerie examples of when you perceive
movement that is not real. Have you ever noticed
how the moon appears to be moving eerily across the sky
as clouds pass in front of it on a cloudy, windy, eerie night?
A similar effect can occur when you are sitting in a
car at an eerie stoplight and the vehicle next to you starts to
move forward. For a moment you may feel that you
are moving backwards. This is despite the fact that
your vehicle has not actually moved and the adjacent
vehicle is the source of real movement.
@Alpha

Yes the senses are not always reliable. It is much better to test the physical nature of tangible substances.

Alpha I agree, but dont we need our senses to read and interpret the tests? It is a Catch-22.

Not always reliable does not mean unusable at all. We use our eyes and other senses to verify things every day. This is about understanding the differences between the two geometries.

The physical, tangible geometry where we can interact and move around things in 3D and the visual geometry where things like perspective and perception, light, angles, and distance etc can affect the way things appear.

Take the example of looking down a set of railway tracks. The physical tangible geometry is that they will always be parallel to each other. The visual geometry is that they will appear to converge into a vanishing point.

The physical, tangible geometry of the substance is what is really occurring. The visual geometry is how things appear to the observer.

[Alpha]