If i’m reading this right, they’ve got six sequences of around 100 base pairs, and they’re comparing one sequence from 100,000 years ago to five others that are much more recent.
How can they say anything at all meaningful about genetic diversity of Neanderthals given so few, and such short, sequences of DNA, spred out over 70,000 years? Can they even tell if these sequences correspond to each other?
Bonus background questions for context:
About how many base pairs per typical human gene?
How many genes do humans have? (I have the numbers 100,000 and 30,000 arguing with each other in my head.)