WW1 led to the collapse of the German navy. As stated in Treaty of Versailles, Germans had been stripped of their naval forces and had been blamed for causing the war. They had been made to pay for all the damages they caused. This naval mutiny combined with public unrest in late 1918 convinced civilian political leaders that the Kaiser had to abdicate the power.
In Bach's day, the Lutheran church service lasted about 4 hours.
<span>It is moderated by emotional cues. If someone is doubting themselves, they create a self-fulfilling prophecy and are more unlikely to do a bad job. Also, their productivity is affected, because they spend more time doubting themselves. However, if they are feeling pride or enthusiasm, they will work more quickly and be more confident.</span>
It would make the curve go in an upwards manner...