Optical Occultation of the Sun
(youtu.be)
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"It comes from having two vantage points a known distance apart from one another and comparing the different images." wrong - you can perceive depth from one vantage point, comparing two will show you its parallax. your confusing a common term and misapplying it with what im talking about. So hold a cube up to your eye, identify all 3 aspects of its width height and depth. Now take a photo of it, Did the cube's aspect of depth disappear? NO, even though its only technically a 2d image, you still perceive the aspects of the cubes depth. g Depth to the stars can be "calculated , but only if you make certain assumption, which are not true. The closeness of your ey.es doesnt prevent you from seeing the aspect "called depth" because the object in question is beyond the diffraction limit, so depth never reaches your eyes.
Yes, with two eyes. Those are the two vantage points which allows for the brain to process the parallax into experiential depth.
With one eye, that can’t happen. It’s just like watching a tv. Without the 3d glasses, you will not experience depth. You can still infer depth (from artistic perspective, light and shadow, etc. but the image you are viewing is 2D and 2D has no depth. Please let me know if you still disagree that 2D has no depth.
There is no depth in a 2D image, and images of things beyond the diffraction limit can’t be seen as anything but a blur... You fundamentally don’t seem to understand what the diffraction limit is, or why.
Depth is not required to see an objects angular size.