Originally posted by Kunochan
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Here’s why:
1. Early Photography and Flash Effects
• Late 19th-century photography often used magnesium flash powder, which produced a harsh, bright light that could highlight details otherwise unseen in dim conditions.
• The angle of light and shadows created by the flash could reveal textures, stains, or patterns that might not be visible under natural light.
2. Photographic Artifacts & Exposure Issues
• Long exposure times and the limitations of early photographic techniques could create visual distortions or enhance existing patterns in the image.
• Overexposed areas or shadows could unintentionally give the illusion of letters or symbols.
3. Blood & Wall Stains Reacting to Light
• Blood and organic matter can reflect or absorb light differently under artificial lighting.
• If there were smudges or splashes of blood on the wall, the flash could have made certain parts appear more distinct in the photograph.
4. Psychological Perception (Pareidolia)
• Humans are naturally inclined to see patterns in random data (known as pareidolia), which could explain why some people perceive “FM” while others do not.
• If the marks were not noted by police or witnesses at the time, it’s likely they were not distinct to the naked eye but became more noticeable in the photograph.
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