The reason it is so unlikely to still exist is not that Nevil was the only person or one of only just a few people to ever possess the strain but instead because it was known to lose vigor and die. I would have to go through a long thread similar to this on MNS forum to find the message from Shantibaba again but he mentioned another breeder or two who got a cut of G13 from Nevil, and theirs, just like Nev's, lost vigor and died over time. I could of course be wrong but I find it almost impossible to believe that if professional breeders were unable to keep the strain alive until today that anyone else did.
Claims have been made that the strain did not just lose vigor and die and instead it was a virus, a plant disease, but since it hit multiple plants in multiple different locations it would either had to have come with the original cutting or caught the virus/disease not all that long after and then been passed with each cutting shared or sold because the odds would make it a virtual impossibility that different plants in different locations would all develop the same virus/disease and die from it.
G13, as in the true pure G13, to growers is like Santa Claus is to a kid whose reached the age where they find it really hard to believe Santa Claus exists but they want him to exist so much that for one more year they try to fool themselves into believing and act as if they do believe, even though deep inside they know he doesn't.
Growers/tokers want to believe G13 still exists. They want to grow and smoke 'the legend' so when someone claims to have "pure G13" like the kid and Santa Claus they do their best to make believe that they believe it is real only because they so desperately want it to be real and to be able to say 'I have it, I'm growing it, I'm smoking the legend!'
Accept the truth kids .... Santa G13 does not exist.
