I don't believe there's anything in life you can't go back and fix. The ancient Vedas - the oldest Hindu philosophy - and modern science agree that time is an illusion. If that's true, there's no such thing as a past or a future - it's all one huge now. So what you fix now affects the past and the future.
Alan ArkinBut one of the things I learned from improvising is that all of life is an improvisation, whether you like it or not. Some of the greatest scientific discoveries of the 20th century came out of people dropping things.
Alan Arkin