TSMC's upcoming N2 fabrication process is set to offer several improvements compared to the current N3E manufacturing technology. It is projected to deliver performance gains of 10% to 15% (at the same power and complexity), while also cutting power consumption by 25% to 30% (at the same clocks and complexity). Furthermore, the shift to the N2 node will likely enhance transistor density by about 15% on average. In general, transition from N3E to N2 brings similar improvements as transition to N3B from N5.
I don’t know how much longer we can keep going before physics ends advancement. Guess this is why quantum computing has been in development for most of my life, but I’m not sure how far off that is given that, as I said, we’ve been pursuing it most of my life and I don’t have a quantum computer. Maybe we’ll discover other breakthrough ways of doing math (I mean, undoubtedly). I’m just not educated enough to fathom the reality of what is possible in these areas.