> but there will be a fundamental difference in how small we can make the conductor [...] Considering how much faster super conductor logic circuits have been

> but there will be a fundamental difference in how small we can make the conductor [...] Considering how much faster super conductor logic circuits have been demonstrated to be driven [0] it might be worth the trade even with a higher fundamental limit on feature size. A super conducting chip with far less logic could easily beat CMOS in: (1) Power performance (2) Single threaded performance (where CMOS has stalled) - but interestingly it could still compete in total throughput if the raw frequency is high enough. i.e even though there may be far less logic available compared to the latest and greatest CMOS lithography techniques - if it runs so much faster, less or simpler cores can potentially match or beat the throughput of the more parallel and specialised but slow logic available in CMOS dies. In short, it could be like taking a step back in time to the simpler, smaller CPU days, but a huge step forward in fundamental frequency. That actually sounds like a nice trade regardless, CPUs are so insanely complex these days. </armchair physics> [0] https://spectrum.ieee.org/superconductor-logic-goes-lowpower https://spectrum.ieee.org/superconductor-logic-goes-lowpower