Unfinished novels

It may seem surprising, but many significant novels known from Armenian and European literature, for various reasons, have remained unfinished.  However, this did not prevent them from being published, read and loved. Why do novels remain unfinished, what is their artistic value, how should they be read? Literary critics Hayk Hambardzumyan and Arkmenik Nikoghosyan are debating in "Parallel Readings".