If I'm looking for an object which may or may not exist, could I say it exists hypothetically, given the definition of hypothetical?
a supposition or proposed explanation made on the basis of limited evidence as a starting point for further investigation
This seems to mean there must be some evidence that the object exits. However, the object I'm looking for does not have any evidence that it might exist.
Practically, it is possible that it might exist, as it occurred in that past because of human errors...