We have already a qualifier for this kind of stuffs, I think : P887 this is a bit of a corner case because it’s not the value that is computed here but the existence of a value, but I think it will do. We just need an item for this, something such as « most likely dead because born long before » should do the trick.

Le sam. 7 sept. 2019 à 09:14, Federico Leva (Nemo) <nemowiki@gmail.com> a écrit :
Fabrizio Carrai, 07/09/19 09:53:
> Since the oldest know person was 122, what about to set "date of death =
> unknown value" for all the persons resulting older such age ?

It seems to me a sensible thing to do. It's good you asked because it's
better to avoid the risk of conflicting mass changes.

I wounder if we need a qualifier to allow identifying this as an
inferred piece of data: do people sometimes state "unknown value" when
someone is known to be dead, but we don't know when they did? I would
place a date of death with a precision of a decade or century in such a
case, but I've not checked what's the frequency of such qualifiers yet.


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