Le 12.09.19 à 13:52, Frederik Ramm a écrit :
> A supermarket chain can introduce paper bags today, discontinue them 
> next week, and re-introduce plastic bags next month.

in theory yes.
in practice logistics chains probably change less quickly
than the urbanization of agricultural land.
if we think we can maintain the landuses (I am not sure when I see the 
catastrophic state of them in some countries with many contributors), 
then we can probably keep up to date a logistical change by decade.

> Do we even have a remote hope of achieving a
> level of completeness and timeliness that makes this usable?

no more or no less than for landuses.
in places where there are contributors interested in the subject, 
applications/sites using osm are the best ones.
where no osm contributors but contributors to proprietary databases, 
those are the best.
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