1) Historian A sets forth a basic representation of a past person
2) Historian B improves on A's work, providing a more detailed representation of the past person
3) Other historians repeat #2 indefinitely
#1 and #2 have already been happening for thousands of years. If #3 is possible (enabling time and tools are speculative), the eventual consequence of the historians' work must be a representation of the past person that is indistinguishable from that past person. That past person would be resurrected. Either such resurrection is possible or there is a hard limit to the degree of detail about past persons that will ever be accessible to historians engaged in genealogical work.
What do you think?