Highly used? So what? Might does not make right. They're definitely not cost efficient. Google's standard play is throwing tens of millions of dollars at a prob

Highly used? So what? Might does not make right. They're definitely not cost efficient. Google's standard play is throwing tens of millions of dollars at a problem, which is not good engineering, even if it works. Edit: you changed your comment out from under me and I fail to rouse the enthusiasm to reply to your new comment.