I think revolution is always a little bit possible. I think it won't look or sound anything like what we would expect. But I think revolution is very difficult, and I'm not optimistic for any kind of dramatic change.
This generation has a responsibility to reshape the world. Start the task even if it will not be fulfilled in your lifetime. Even if it seems hopeless now, never give up. Offer a positive vision, with enthusiasm and joy, and an optimistic outlook.