You are right. The article is totally wrong. From Eric Brewer himself: "The relationship between CAP and ACID is more complex and often misunderstood, in part

You are right. The article is totally wrong. From Eric Brewer himself: "The relationship between CAP and ACID is more complex and often misunderstood, in part because the C and A in ACID represent different concepts than the same letters in CAP..." (from http://www.infoq.com/articles/cap-twelve-years-later-how-the-rules-have-changed http://www.infoq.com/articles/cap-twelve-years-later-how-the...)