There is! a span of time, dedicated to be repeated. Every after another. Like a Loop.
And none of us can define that loop. Form when it ends, and from when the other began. But to one! whom has been given wisdom to understand, he will feel it. He'll see the same mistakes initiating by others. Again & again by every new upcomings. Like a deja vu going on and on. And then you'll realise, it's not going to stop. Unless for those who had been obeyed. You'll get tired explaining them.
Once! you were in strength to explain things precisely. But not now. Now! you had understood, who is the right one to be explained, else on whom you'll not waste your time for.