I think my real question have always been how many privacy coins do we need? This is similar to a broader question how many different coins do we need? There are currently more than 1400 coins on coinmarketcap.com. How many do you think will survive in 2 years time. Please don't get me wrong, I am not skeptical or bearish on the technology, I am opposite in fact. Just trying to understand other's thought process. Thank you for the article.