And it's unfounded statements like this that contribute to ignorance and useless "debate." They do not keep their models "secret," it's just difficult for them

And it's unfounded statements like this that contribute to ignorance and useless "debate." They do not keep their models "secret," it's just difficult for them to release homebrew software not written by software engineers to the general public and get much use from the exercise without a lot of handholding. Difficult != secret.