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Further on the subject of the Western aesthetic practice of space-filling, one (uniquely Western) element of interior design that I have always found indescribably ugly is wallpaper:
en.wikipedia.org/wiki/Wallpaper#History
Wallpaper, using the printmaking technique of woodcut, gained popularity in Renaissance Europe amongst the emerging gentry. The social elite continued to hang large tapestries on the walls of their homes, as they had in the Middle Ages. These tapestries added color to the room as well as providing an insulating layer between the stone walls and the room, thus retaining heat in the room. However, tapestries were extremely expensive and so only the very rich could afford them. Less well-off members of the elite, unable to buy tapestries due either to prices or wars preventing international trade, turned to wallpaper to brighten up their rooms.














Then when you have wallpapers with paintings (and other ornaments) superimposed, you reach a level of aesthetical inferiority that I couldn't have come up with even if I were trying to make Western aesthetics look bad on purpose:






Note in this last example, not content with filling the walls with ugliness, they couldn't even spare the floor, the curtains, or the sofa from the same fate! Still, you have to admit it suits the Westerners in the photo (the type colonizing all over the world and proclaiming Western superiority (including, ironically, in aesthetics!)).