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Re:Reddit's photo albums broke due to Integer overflow of Si... by Dylan16807 on Tuesday December 13, 2022 @07:37PM (#33978424)
In practical terms, IPv6 is arranged as a 64 bit subnet ID and 64 bit device ID.

And the subnets are in a hierarchy that helps with routing but limits the packing efficiency.

We could feasibly "run out" to the point that we can't keep doing things this way.

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