The loss of incandescents made human habitats into colder, harsher, less welcoming places. We’re turning our nighttime cityscapes bright blue. We’ve almost completely erased the joy of coming home to warm soft lighting from the human experience (and no, the piss-yellow emitted by “warm” LEDs isn’t a substitute). We aren’t stuck with darkness, at least, but something very real and valuable was lost and not replaced.