I think it depends how absent light can be. In most blacks, its not entirely absent. What they are saying is that this black is the blackest so far, in that it creates the condition of near total absence of light - not easy, on this planet.
Interesting that its conductive qualities are so special .. I guess this means its the hotblack of all blacks. A kind of blackest of black. Or to put it lightly, black on black.
It’s the wild colour scheme that freaks me. I mean, when you try an’ operate one of these weird black controls which are labelled in black on a black background, a small black light lights up black to tell you you’ve done it. What is this? Some kind of intergalactic hyper-hearse? - _H2G2_, Zaphod describing Hotblack's spaceship
Interesting that its conductive qualities are so special .. I guess this means its the hotblack of all blacks. A kind of blackest of black. Or to put it lightly, black on black.