"...yesterday i was clever, so i wanted to change the world. today i am wise, so i decided to change myself..." (rumi)
the world as we know it will change.
there's little we can do about it (but by no means does this mean that we should do nothing!)
however, there is much we can do to ourselves and how we chose to act / react / respond to change.
"...in a sense, every second is a point of no return..." (anon)