i don't know if i maybe missed something, but it does not seem like the inequality argument has been contested by anything in the text. in fact, the author stat

i don't know if i maybe missed something, but it does not seem like the inequality argument has been contested by anything in the text. in fact, the author states that in Japan, like elsewhere, despite a struggling economy, the rich are still getting richer. if all the other possible explanations do not work, then Japan is perhaps the best example of what Piketty wrote about.