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As for the estimate that only 10-20 mutations were beneficial, that scales up to nearly 700 beneficial mutations for humans in the same number of generations (or roughly one million years).
Let me guess... you think you found a contradiction?
The mechanism of evolution is change in DNA. That's all. The changes don't have to be beneficial, and most of them aren't.
You have not done that, not even once. You guys are trying to treat science like history, for one thing. It doesn't work that way. Until you can demonstrate it and reproduce it, you haven't really gone beyond speculation. Historians know what happened and speculate about why. You are still at the point of speculating what happened.
If you could spend five minutes without scrawling "then a miracle happens" across the middle of your page evolution would be scientific. You can't do that.
Even in the work I had to dig up, the researcher is postulating a mechanism of mutation rather than selection and expression.
What is really laughable is your assertion that different breeds of dogs represent evolution. This is something man did simply by selecting traits and recombining them to strengthen gene expression.