[notjosh]

The article has a note on that saying:

> If you think this use of addresses seems wasteful, you needn’t worry. There are around 3.4×1038 IPv6 addresses, enough for 10^27 such displays.

So even an intentionally wasteful project has plenty of headroom for quite a while yet!

[hoppelhase]

By "this" I mean encoding information in the address in general, not this signage-thing. See my other reply in this thread.