I’m mildly colourblind: I find it difficult to distinguish red/green, but can still do it under the right conditions. On the whole, I agree that colourblindness

I’m mildly colourblind: I find it difficult to distinguish red/green, but can still do it under the right conditions. On the whole, I agree that colourblindness doesn’t really affect my life, in that for the most part it doesn’t cause me any significant difficulties. But I have a feeling that this is only because I’ve gotten used to it, and that it does affect me — just in ways that I don’t notice. Most relevantly for this discussion, I recall seeing a 3D chart which I was having trouble reading, until I noticed a link to a colourblind version replacing red/green with red/blue (or something like that), at which point it became almost trivial to understand. I had gotten so used to seeing non-colourblind-adapted charts I didn’t even realise they were impeding my comprehension. (The other major time I recall it affecting me was in first-year geology class — the instructor would say things like ‘this rock has huge red garnets which are easy to see’, and indeed everyone could see them except for me. Thankfully, colour mostly plays a very minor role in mineral identification.)