Radical Optimism

This is a very meaningful concept that resonates. I am wondering if it is any different than "radical acceptance"? I am definiely caught up in this "race to find the answers"- it might be here, it might be there...no., not there....definitely not there...and so on. Radical optimism perhaps is different in one way: a belief that whatever is will lead to something that will lead to something, and that is the way to train the mind...is this so?