China's 1.3 billion people and unmatched economies of scale can bring new technologies to market fast -- in "China time" -- at a speed that is virtually impossible anywhere else in the world.
Sure, the comparable sales growth has declined in the past couple of months, but it is only fair that for a fast food chain with more than 33, 000 restaurants worldwide, we look at data points over a timescale more than 1 or 2 months.