Regardless, leaving KnC off your list that purported to demonstrate the non-viability of big hot chips was a silly mistake to make. 
No one said big chips are impossible. Just that they are fraught with difficulties, as proven by the fact that most big chips have had huge problems making working miners, while most small chips built working miners quickly and easily.
That's right. When you lose on specifics, retreat into generalities.
Never mind how many difficulty-fraught small chips, including BitFury, have also had huge problems making working miners...
