The Device Question

The proposed primitive is a nanoscale magnetic core logic element, with cobalt named as the high-performance material and iron or nickel as cheaper alternatives. The important engineering question is whether those elements can become a cascadable logic family rather than isolated magnetic demonstrations.

A useful logic family needs gain, restoration, fanout, noise margin, repeatable switching, routing, clocking or pumping discipline, and a process that can make many matched elements.

Fabric Requirement

The original proposal names an open-source differential magnetic-amplifier fabric: FPGA-like flexibility, but with gapped-core nano magnetic amplifiers instead of CMOS gates.

That comparison only becomes real if the magnetic cells can drive each other, expose reliable state, and be placed into a regular fabric with testable behavior. Thin-film deposition is the suggested manufacturing direction; the process has to deliver matched cells, routable interconnect, and repeatable tests.

Performance Target

The original post talks about four-order power reduction and multi-THz switching. That language names the desired regime: approach the energy floor while keeping enough gain and cascadability for real logic.

A strong next artifact would be a material stack, geometry, drive method, switching energy, switching speed, gain, fanout, endurance, and a small cascaded circuit that another lab can reproduce.