I don't think that's what the poster meant. I think it was probably more along the lines of how you experience e.g. 'light' vs. what it actually is: https:/

I don't think that's what the poster meant. I think it was probably more along the lines of how you experience e.g. 'light' vs. what it actually is: https://www.youtube.com/watch?v=FjHJ7FmV0M4 (The vast majority of light is effectively invisible to you.)