My own opinion is that there is no way of "documenting" the mental processes behind IGG. It's simply impossible.
On the one hand, it's technically easy. Even if there had not been somehow named Kohberger in Othram's database (or whatever database it was), there would still be matches, because we are all related. Naturally, the higher the percentage of match (let's say 25%), then it's a certainty that the two people in question are related. That's because, aside from point mutations, everyone's DNA is sourced from just one place (their parents, then their grandparents, then great grandparents and so on). The mathematics (and SNP choice and chromosomal span) of this process is not difficult, easily accomplished by a computer. Is the computer "thinking"? What is there to report about what the computer does?
Many of our own human cognitive functions are easily replicated by machine; some are not. Obviously, a human could sit down with 600,000 data points on a long read out and try to personally verify that two different samples match and at what percentage/degree of confidence. That human had better find the same thing the computer does, though, because when it comes to comparing long (apparently random) lists of letters, computers are awesome.
Those of you who have taken biology know that one-half of these letters must mirror the other half - so the 1.2 million nucleotides in those 600,000 SNP's can in fact be halved. Super. Still quite a chore - and the repetitive nature of the task - make it more prone to human error.
Here's the type of chart that emerged from Idaho State Labs after putting the sample from the sheath into a DNA sequencer (for one in action, go to youtube and find Spencer Wells's The Journey of Man and skip to about 45 minutes, in the part where Wells is seeking one rare and specific SNP in India (an SNP that heretofore had only shown up in the Australian aborigine population - and it's my understanding that all of the Australians had that rare SNP).
View attachment 444356
This data is part of someone's genome. Make it way longer and that's what was sent to Othram, IMO. That's how DNA data is recorded, everywhere on Earth that I know of (because each letter stands for a chemical term - like guanine - and all biochemists use the same terms.
A machine then looked through their database (like the search function here on Websleuths) and found a significant match. Match means "is identical to" a certain segment of this data. Since Othram has chosen the 600,000 SNP's most associated with individual variation in *advertiser censored* sapiens, and since geneticists know the relative distance of two samples by statistical methods, this is quite effective at finding our relatives. I have 5000 relatives on 23andme. Some of them are descendants from 6xGreat grandparents, of course. But the system is sensitive enough to detect that. One doesn't even need to write anything down - the computer does the "writing," and using pen and pencil would be silly and impractical. The computer does the "thinking" and "recording."
Kind of like the chambers on a slot machine clicking into place - with just 4 symbols (ACTG) repeated 600,000 times in a specific sequence (your own DNA is as specific as it gets - unless you are an identical twin).
If the Defense was asking the Kohberger family to reveal whether Bryan has an heretofore unknown identical twin, and asking them to produce evidence that such a twin did NOT exist - it would be similar. One can MATCH things (children can do it), but to say what is NOT present in a pattern is quite difficult - esp. if the thing NOT there doesn't exist in the first place. In the case of DNA, it would be obvious if something other than ATCG were there (but I've never ever seen a computer make a mistake and put a wrong letter in - as they are only given FOUR to work with).
IMO.