A much fairer comparison would be watercolour vs oil painting. It's the same art, but different mediums, involving different skills, different techniques and ac

A much fairer comparison would be watercolour vs oil painting. It's the same art, but different mediums, involving different skills, different techniques and achieving different ends. Fwiw, there are certainly things that are extremely difficult to replicate digitally. Solarisation is one of them. (Don't get hung up on the camera bit. There is more to the darkroom than just a primitive analogue Photoshop.)