The problem is exactly that we can't scale vertically. Look at single threaded performance charts -- they're already far below Moore's Law. STP/watt is increasi

The problem is exactly that we can't scale vertically. Look at single threaded performance charts -- they're already far below Moore's Law. STP/watt is increasing quickyl, but peak performance per core isn't really. (It is, but the second derivative of performance vs time is already negative.)