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No, really- 18 quintillion is a huge number.

92 billion years is a long time to imagine. Let's say we won't have a use for these addresses after the sun dies in approximately 5 billion years, so we're going to try to use them all up by giving every person 1,000 /64 blocks.

Wolfram Alpha gives the surface area of earth as 5e18 square centimeters. 2^64 is approximately 1.8e19. With a single /64 block you could put two nanobots in every square centimeter on earth. That's not really practical over the oceans, but whatever.

With 1000 /64 blocks, you could cover the earth with nanobots that take up only 0.05mm^2 of space each.

Pixels on the average computer display take up 0.055mm^2.

You could address a display that covered the surface of the entire earth with just 1000 /64 blocks, and you could make one of these display for every person born until our sun dies.

It's an astoundingly huge number.




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