I think answers to these questions will help me understand Sam's essay. Can you please help me?
1. What is superhuman machine intelligence (SMI) in the context of this essay ? [edited to add the qualifier]
2. What is the danger from SMI to humans and other current life forms that we are concerned about? It seems to me that concerns about SMI can be classified into two categories: (a) dangers to "our way of life (work, earn, spend)" and (b) dangers for existence of human race. Are we talking about both these categories? Perhaps other categories?
3. What anecdotes (or evidence) is leading to this concern?