It's been SIX long years since *that* dress broke the internet. People were adamant it was either blue and black (sorry, to tell you -- it actually is) or white and gold (that's what it really looks like to many of us). Folks got nasty defending their own points of view on the matter. And you thought the 2016/2020 election cycles produced vitriol?!
Pascal Wallicsh over at Slate has figured out why we saw two different images. All we can say is, thank you -- once again -- science. "My research showed that if you assumed the dress was in a shadow, you were much more likely to see it as white and gold. Why? Because shadows overrepresent blue light. Mentally subtracting short-wavelength light (which would appear blue-ish) from an image will make it look yellow-ish. Natural light has a similar effect—people who thought it was illuminated by natural light were also more likely to see it as white and gold. Why? Because the sky is blue, daylight also overrepresents short wavelengths, compared with relatively long-wavelength artificial (until recently, usually incandescent) light."
So do you see it as blue and black now? Or is it still white and gold?