You can be genuinely happy for others’ success while at the same time feeling extremely stressed that a competitor’s version of Foo is doing better than yours,

You can be genuinely happy for others’ success while at the same time feeling extremely stressed that a competitor’s version of Foo is doing better than yours, etc. In fact, others’ successes can often be real, genuine, not-ego-or-jealousy-related-at-all indicators that whatever you’re focusing on is not good enough and there is not room in the market for what you’re making, which is both critical to know about and respond to, and also super stressful. IMO anyway, being genuinely happy for others’ successes is totally orthogonal to the topic of this thread. Being mean-spirited about others’ successes would possibly be some other, different type of stressor for a different type of discussion.