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![](https://lemmy.world/pictrs/image/5170ed37-415d-42be-a3e7-3edd79eda681.png)
The universe appears to have a finite age in the Big Bang model and can be calculated to give an approximate value. Particles however, do not seem to have any correlation with time. The lifespan of a fundamental particle, without colliding with its anti-particle through annihilation, appears to be infinite.
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