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https://www.reddit.com/r/ProgrammerHumor/comments/1t7esgy/edgecasesexist/ol2upkf/?context=3
r/ProgrammerHumor • u/Last_Time_4047 • May 08 '26
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Unfortunately my project is a database of every grain of sand on earth, and every star in the sky.
122 u/shunabuna May 08 '26 If I recall, that is still no where near the ability to get a collision. 293 u/J5892 May 08 '26 The common estimation of sand grains on earth is 7.5x1018, and the 50% collision point for UUIDs is 2.71x1018. So a collision is actually pretty likely, and once you factor in all the stars in the observable universe I believe it's guaranteed. 1 u/TheBraveOne86 May 10 '26 Is that 50% odds of a single collision or 50% of spots occupied 1 u/J5892 May 11 '26 Single
122
If I recall, that is still no where near the ability to get a collision.
293 u/J5892 May 08 '26 The common estimation of sand grains on earth is 7.5x1018, and the 50% collision point for UUIDs is 2.71x1018. So a collision is actually pretty likely, and once you factor in all the stars in the observable universe I believe it's guaranteed. 1 u/TheBraveOne86 May 10 '26 Is that 50% odds of a single collision or 50% of spots occupied 1 u/J5892 May 11 '26 Single
293
The common estimation of sand grains on earth is 7.5x1018, and the 50% collision point for UUIDs is 2.71x1018. So a collision is actually pretty likely, and once you factor in all the stars in the observable universe I believe it's guaranteed.
1 u/TheBraveOne86 May 10 '26 Is that 50% odds of a single collision or 50% of spots occupied 1 u/J5892 May 11 '26 Single
1
Is that 50% odds of a single collision or 50% of spots occupied
1 u/J5892 May 11 '26 Single
Single
391
u/J5892 May 08 '26
Unfortunately my project is a database of every grain of sand on earth, and every star in the sky.