Exactly. 24 Bit and 32 Bit was only a step after 8 Bit and 16 Bit Color. Soon we'll have 48/64 Bit. This will also remove moire artefacts on gradients. Already today good graphics apps work with more than 24 bit internally. So they shift the source RGB to eg. 48 Bit, do all calculations and then convert it back to 24 bit.