Has there been any research on producing stem cells from specialized cells? Or is there something fundamentally impossible about this, akin to producing the original content given only a hash value?
Even though nobody is quite sure how it works, it's possible to reverse the epigenetics of a cell back to its original differentiated state and even back to stem cell form not entirely unlike rolling back git commits.
HN is a very advanced level in this game, with high standards for gameplay, but it's very much a part of the game nonetheless.