Mendel
Senior Member.
Metabunk has a tag for optical illusions, https://www.metabunk.org/tags/optical-illusion/ , but all 4 threads in it are rather specific.
Optical illusions are interesting for us because they demonstrate how "normal people" (aka all of us) can be mistaken about what they're seeing; and that is a major reason why we can't rely on witness reports alone.
Source for these is
https://imgur.com/gallery/illusions-1VRl3k9
Imgur is currently blocked in the UK; I've put some of the files in the spoiler below. On the imgur embed, there's a right arrow that appears near the right edge that you can use to browse the image set; or click through to imgur to scroll.
This is from the comments:
Optical illusions are interesting for us because they demonstrate how "normal people" (aka all of us) can be mistaken about what they're seeing; and that is a major reason why we can't rely on witness reports alone.
Source for these is
https://imgur.com/gallery/illusions-1VRl3k9
Imgur is currently blocked in the UK; I've put some of the files in the spoiler below. On the imgur embed, there's a right arrow that appears near the right edge that you can use to browse the image set; or click through to imgur to scroll.
This is from the comments:
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