Physicists have proven a fundamental limit to transparency.

What it means

Physicists have proven a theoretical limit on how transparent any material can be, showing that perfect transparency is impossible. Even with ideal engineering, some light will always be lost due to fundamental scattering and absorption processes inherent to the interaction between light and matter. This finding sets a hard upper bound on the optical clarity of any substance.

Accuracy & sourcesGrounded

The claim is solid, reported by Scientific American — a reputable secondary source — based on a likely peer-reviewed study. The reporting sits close to the primary research, though the specific paper details are not provided in the highlight. The 'fundamental limit' framing is supported by the article's title and search results.

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