[tauwauwau]

Disclaimer: I'm not an expert on the subject.

I remember watching PBS DNA documentaries[1] where it's mentioned in one of the episodes that DNA-wise there's only 1% difference between any two humans.

I looked for the same details today on genomenewsnetwork[2], it has following line

> we are all 99.9 percent the same, DNA-wise. (By contrast, we are only about 99 percent the same as our closest relatives, chimpanzees.)

It seems like even an error of 1% would be actually be same as missing the whole difference between two people.

  [1] https://www.youtube.com/watch?v=apOP8MMedqE
  [2] http://www.genomenewsnetwork.org/resources/whats_a_genome/Chp4_1.shtml

[nknealk]

A lot of genomic tests only sequence the single base pairs that happen to contribute to that 0.01 percent variability. The article cites that only a subset of the genome was sequenced and that subset isn't chosen at random but rather highly targeted to get at variance in populations

[hyeonwho4]

These genomics services don't look at the parts of the genome that remain the same for everyone...