"5nm is far too close" ... for ... what exactly? What is it about 5nm that makes it "too close"? What occurs, or stops occurring at 5nm?
Is this a trick question? Casual checking in...
At some point down there you get too much electrical leakage to carry a signal.
Classical mechanics break down as quantum effects begin to appear.
Registers begin to act too much like qubits for digital reliability, which requires static discreet states (1 or 0).
The easiest gains were at the beginning. Moore was observing the harvest of the low hanging fruit, nothing more.
Now it takes more capital to build a modern fab than it took to go to the moon.
jbreher knows all this anyway, he claims to work with the semi-conductor industry after all. Presumably he's in marketing and not anything technical, there is no need or demand for talented liars in technical fields (they have a tendency to screw things up lol)
Tell us again jbreher about the imminent feasibility of femtometer transistors for CPUs, I'm in the mood for a laugh