Can you hide information in the absence of a vector? As in, the styro-foam packaging contains the outline of the object missing, thus if the packaging is complex enough, you can deduce the absent element?
If you subtract the list of numbers representing hot from the one representing lava, you’ll get something close to rock.
But sadly, human brain is just not capable of imagining the utter evil on the planetary scale that has already happened but did not surface in public discussions. AI won't either.