Despite all the bashing of Google's hiring process, I think Google's hiring process is very good. My experience was completely positive. Google had determined

Despite all the bashing of Google's hiring process, I think Google's hiring process is very good. My experience was completely positive. Google had determined that “G.P.A.’s are worthless as a criteria for hiring, and test scores are worthless. ... We found that they don’t predict anything.” No, that's not what Google is able to determine. The blanket claim is too broad. Predict anything? I don't think GPAs are worthless, but that's another discussion for another time. Regardless of whether they're useful, the only thing Google has is its own performance ("perf") data which represents political factors more than anything else. If you find a zero correlation in junk data, you know... absolutely nothing more than you did beforehand. That's the thing about junk data. You can't trust it, so you can't use it to infer anything.