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Superconductor Breakthrough Findings Replicated, Twice, in Preliminary Testing - Tom's Hardware
(www.tomshardware.com)
This is a most excellent place for technology news and articles.
More heat efficient processors and more energy efficient processors are one and the same. Which is huge. Energy usage is a large portion of the cost of computational infrastructure, and things like training neural networks. I suspect a thermally more efficient processor would also potentially last much longer too, with less intense thermal cycling.
A lot of data centers are limited by the energy infrastructure where they are constructed.