3. TIL that for a period of 20 years, Argentina ranked as one of the wealthiest nat...

TIL that for a period of 20 years, Argentina ranked as one of the wealthiest nations on Earth, having the highest GDP per capita in 1895 and being among the 10 richest until 1920. Today, the country is in crippling debt, and is considered one of the biggest economic downturns in modern history.

Yep, another thing that is also important to keep in mind is that they don't sequence all of your SNPs (small nucleotide polymorphisms) that are responsible for showing your genetic background. Other than the algorithms and the sample groups, this is why you can get two different results if you test with, say, 23andMe and Ancestry both; they test different sets of SNPs so one might come up with ancestry that the other one doesn't think or know you even have.

I had a similar disappointing experience myself in that I got results that I knew could not be right, and that's when I found the slider for the confidence interval and did some more reading about the science behind these services. When I moved the slider from the default 50% to 90%, it could only confirm about 20% of my recent ancestry (i.e. grandparents) and the rest of my results were purely at the continental level. And the whole reason I used the service was to find out more about my ethnic background -- which doesn't really help when I already knew which continents my family came from lol.

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