I was replying specifically to the question in the comment asking: "What harsh conditions are there in the side of a building that don't exist in nature? ([...]

I was replying specifically to the question in the comment asking: "What harsh conditions are there in the side of a building that don't exist in nature? ([...] it would be nice for him to specify)". Whether those specified conditions are actually too harsh or not is not for me to say, I don't grow trees and I don't analyse weather patterns on skyscrapers. Also, assuming you meant "you" as in me rather than "you" as in "one": I am quite far away from being a native New Yorker, and I don't appreciate the implication that I am "extremely unsophisticated".