I wonder how many users actually need a planet-wide planet file. Surely
there are loads of cases where a regional extract would suffice for the
use case in hand. How about encouraging people to consider using a
regional download?
Something else, only slightly off-topic: I have often had ideas in my
head about looking at the dynamics of particular bits of data - i.e. OSM
histories. Correct me if I am wrong, but I don't remember ever seeing
regional full history files. I think there is a download available for
the entire planet with full history, but that is going to be a monster
and a real challenge to keep up-to-date. But it's the only way to get
historical data, except through the API. If I want to trace for example
the history of changes to county boundaries in the UK, or the alignment
of motorways, that will be millions of API calls to get the full history
of every node, way and relation involved. If it has to be, then it has
to be.
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