Olaf Scholz: 63-year-old, Social Democrat. One metre and 70 centimeters tall. Favourite animal - the house cat. When it comes to Germany’s probable next Chancellor, the above is certain. But what else do we know about Olaf Scholz? What kind of leader is he? And what has he learned from past mistakes? I’ve read through almost every portrait of the man that has been written over the past two decades.