Don’t Trip!
Sometimes going down the stairs can be a hard enough challenge without there being an optical illusion right in front of your eyes. There is just something hard about being able to successfully do any sort of physical activity when your mind can’t really focus.
These stairs seem to be exactly what we are talking about. I don’t think I would be able to walk down the staircase without either falling over, vomiting, or passing out. The interaction between the carpet design and not knowing where one step ends and another begins is a bit much for me.