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the claim

Lossless compression can shrink a highly repetitive 5 GB file to 50 MB and restore it exactly.

the verdict
INSUFFICIENT LEANING
Recorded sources
2 sources for · 0 against

Counts group repeated records of the same source within each side. They do not measure evidence strength or source independence.

Is it true that Lossless compression can shrink a highly repetitive 5 GB file to 50 MB and restore it exactly?

Unclear. Two reference definitions confirm that lossless compression restores data exactly and works by exploiting statistical redundancy, which covers the reversibility half of the claim. Neither source addresses the specific 100:1 reduction from 5 GB to 50 MB, so the claimed ratio is not established by the retrieved items.

Verdict: PARTIAL LEAN · 2 sources for, 0 against · Last checked

The private library was unavailable for some searches in this check. Missing library results are not evidence against the claim.

Evidence for · 2
Lossless compression
Get citation
Lossless compression. (n.d.). en.wikipedia.org. https://en.wikipedia.org/wiki/Lossless_compression

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More for · 1
Lossless compression
Get citation
Lossless compression. (n.d.). developer.mozilla.org. https://developer.mozilla.org/en-US/docs/Glossary/Lossless_compression

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