Carlo (right) put this collage up on Facebook. On the left, Shane is pointing at a T-shirt for sale in a Taipei market. The Chinese on the T-shirt reads "White people can't understand this." Meanwhile, Carlo is holding a shirt that reads "Black people also can't get this."
Obviously both Carlo and Shane can read the T-shirts, or they wouldn't have taken the pictures (Shane is just pretending to be perplexed, that is all). Why anyone would assume another person couldn't do something based on the color of their skin isn't funny, like I'm guessing the T-shirts are supposed to be. There must be a market for these shirts though, or they wouldn't be on sale.