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Nano Banana images are some of the most convincing fakes online. How to check for Google's SynthID watermark, what the visible sparkle means, and the visual tells that still give Gemini images away.
The pope in a puffer jacket was funny. The fake Pentagon explosion moved markets. The deeper damage isn't that fakes get believed — it's that real evidence becomes deniable.
Keep an evidence trail: separate the caption from the image, follow the source, inspect available provenance, and preserve uncertainty when the record is incomplete.
A rooftop photograph from the ImageGuesser archive shows why a one-light shadow rule can fail. Work through the visible evidence and its limits.
An actual boxing puzzle shows the limits of a familiar shortcut: both the photograph and a generated alternative hide the hands in gloves.
I generate AI images every day to build ImageGuesser puzzles. Here is what the diffusion process actually looks like from the operator's chair — and why its failures cluster exactly where they do.