Fixating on the bigger picture -- that is the macro environment -- is often more valuable as personal entertainment than it is productive for your enterprise.
Everyone lives in the same macro environment. It suits some; doesn't thrill others. The difficult job you have is to figure out how these big picture issues do, will or won't affect you and organization, without letting your personal preferences and interests color your judgement.
It's a hard task. There are many cognitive biases that we all succumb to from time to time. Here's a link to a list of 61 of them.
Which gets us back to positive thinking, or rather,