There is an important practical consideration that is being left out here. Attempting to completely devote one’s life to these causes in the way described would not necessarily be effective. The best way to devote your life to a cause is not necessarily in a super-fervent way, because that’s not how humans work. We need certain types of motivation, we have physical and emotional needs, we suffer from burnout if we work too hard. So if you believe that astronomical suffering risks are the most important issue to work on, then by all means work on them, but don’t overwork yourself, it will likely result in anxiety, burnout, and unhappiness, which won’t actually help you to work more effectively. Work on these problems, make them your life’s work if you see fit to do so, but do so in the context of an overall good life.
There is an important practical consideration that is being left out here. Attempting to completely devote one’s life to these causes in the way described would not necessarily be effective. The best way to devote your life to a cause is not necessarily in a super-fervent way, because that’s not how humans work. We need certain types of motivation, we have physical and emotional needs, we suffer from burnout if we work too hard. So if you believe that astronomical suffering risks are the most important issue to work on, then by all means work on them, but don’t overwork yourself, it will likely result in anxiety, burnout, and unhappiness, which won’t actually help you to work more effectively. Work on these problems, make them your life’s work if you see fit to do so, but do so in the context of an overall good life.