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All the Perl that's Practical to Extract and Report

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  • I asked myself the same question a few months ago when I started using git. Here's the calculation I did:

    SHA1 is 160-bit checksum. 2**160 is around 10**48. Then I plugged that into the formula I found on Wikipedia [] to see how many checksums you'd have to generate to have a 50% chance of a collision. The answer is around 10**24.

    To give you an idea of how big that number is, if you generated one git commit a second, it would take 4.5 quadrillion years before you'd have a 50% chance of a collision. Tha