They are not the same process at all. Commercial ‶automated″ kits only genotype you, i.e. look at a couple thousands of well known SNPs to put you in the group

They are not the same process at all. Commercial ‶automated″ kits only genotype you, i.e. look at a couple thousands of well known SNPs to put you in the group you share more with. Resolution is low, extrapolation is virtually impossible, but it's cheap and fast, and Uncle Joe can claim his 15% Italian ancestry. Work like those done on these denisovan is a whole other can of worms, which is still a very vibrant field (https://en.wikipedia.org/wiki/Ancient_DNA https://en.wikipedia.org/wiki/Ancient_DNA) – at least it was when I left it a couple years ago. The main difference being that it's trying to sequence as much of the genome as possible, using the better preserved DNA molecules, typically in the teeth or some places in the skull. Then it's dozen of hours of menial work by specialized worker using protocols light-years ahead of what is done for the commercial kits. To make a good ol' HN car comparison, it would be like saying that because some chain carshop once screwed your head gasket change, there is no way anyone could ever restore a Cobra.