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lots of things are envisioned every day. everyone has ideas; calling it "envisioned" doesn't make those things any more feasible or realistic.

article author is either sole owner of a huge copper deposit or isn't articulating themselves very well. DC makes no sense for distribution at all.

But DC is used for distribution, just at extremely high voltages.

HVDC is used in distribution for specific transfer between point A and point B, HVDC is not used _for_ distribution.

Distribution implies a network that keeps getting downstepped until it reaches consumer nodes.

San Francisco has a “secret dc grid serving 900 customers” - the problems described are now solvable.