4 big South American failed proposals.

Update of 3 big South American failed proposals.
https://onlinedatingsoundbarrier.blogspot.com/2011/01/3-big-south-american-failed-proposals.html

* MiMediaManzana
https://onlinedatingsoundbarrier.blogspot.com/2019/06/mi-media-manzana-peruvian-dating-app.html
https://www.onlinepersonalswatch.com/news/2019/07/6-lessons-from-a-failed-dating-startup-in-latin-america.html
* Pachetes
* CitasWeb 
* Alguien a Quien Querer

never wanted to innovate!

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Compatibility IS REALLY No. 1 Ingredient To Satisfying Relationship, Study Says
http://onlinedatingsoundbarrier.blogspot.com/2019/07/compatibility-is-really-no-1-ingredient.html
"The researchers studied 2,500 heterosexual couples who have been married for about 20 years and discovered that shared interests weren’t the No. 1 element to a satisfying relationship despite what many people – and dating apps – believe."

The key to long-lasting romance: COMPATIBILITY is exactly STRICT PERSONALITY SIMILARITY and not "meet other people with similar interests or political views".  

Online Dating sites have very big databases, in the range of 20,000,000 (twenty million) profiles, so the Big Five model or the HEXACO model are not enough for predictive purposes. That is why I suggest the 16PF6 test instead and another method to calculate similarity.

High precision in matching algorithms is precisely the key to open the door and leave the infancy of compatibility testing.
 
Without offering the NORMATIVE 16PF6 (or similar test measuring exactly the 16 personality factors) for serious dating, it will be impossible to innovate and revolutionize the Online Dating Industry.