If you've seen this riddle before, don't spoil it for the others! Round #3, little harder! Good luck. Who am I? Who am I, a problem that can't be solved, to remain? Surely I am to be expunged, but to what end? No, nothing can erase me. There was a way, but the path has been traversed and has been forked into failure. You do not know it, but I remain. I remain and I excel, I thrive. You cannot stop me, you can only hope to contain me, and this you do very well. Oh, my, yes, you can be sure that your methods succeed. For now, your world is safe from the ashes I will leave.