The number of errors of fact in Arendt's book are considerably fewer than Abel implies.
Silence implies consent.
You were alive when you were born and you are alive at this moment, so you must be alive any point in between. That implies everyone's life is a convex one.
This implies a fun and relaxed working atmosphere where team achievement is highly valued, communication is extremely important and traditional 3-hour meetings have been replaced by informal chats in the queue for coffee.