Board Thread:General Discussion/@comment-66.96.68.102-20160516201045/@comment-53539-20170107110028

@Dave, the issue with incest can be taught through base genetics. That as generations go by the more inbred a family is the weaker its ore genetics get. You can at most afford 1 generation of inbreeding, which already produces a 50% chance of a ill-side effect. After 1 generation + breeding outside of incest, this goes down to 25%, continued breeding with fresh blood reduces it down further and all the ill effects goes away.

However, breeding further after the initial 50% just makes things worst. You get the situation with many dog breeds that exist now where up to 40%-60% of pups born even without incest can have problems no matter what you do. Or higher. The King Charles Spaniel alone has a 40% hance of getting brain swelling which most of the time kills it; this is a genetic flaw that is easily avoidable if you just don't breed the carrier. But often, the breeders will breed the dog even knowing the risks of passing on the ill genetics. :-/

People get worried in America of marrying a cousin, but from a 2nd cousin onward genetics are diverse enough and are under that 25% risk factor. So a 2nd cousin-> onwards breeding is fine.

I had to learn this... I breed budgies.

I think the only factor in the whole Miku x aito thing is that Kaito is the only other Vocaloid out of the CFM releases that is a mature/true male. Its often a case of people prefer girls to pair up with a similar or older male rather then a younger one. So this takes Len out of the issue as he is 14 and Miku is 16. Kaito has no defined age, his vocal is flexible enough, so can pair up with a lot of females from teens to adults and nobody really can say much else. This is different to Gackpoid, who definitely sounds like an adult male, for example.

The MMD videos are, however, up to users. Kaito doesn't have to be like that at all.

Other then that... side from this, Kaito and Meio are a duo, while Miku is a Crypton CV series vocal and their own vocal reation at that. I an see why some make not like the pairing of Kaito x Miku.