This year, I predict, we'll be inundated with witticisms about 20/20 vision, including the statement that hindsight is always 20/20. This implies that we can understand past events in retrospect and amend our behaviour accordingly. If this were true, more of us would find it easier to avoid our glitches and pitfalls and life would be a simple process of self-improvement. In reality, our vision is so coloured by our emotions that we can't see the wood for the trees, to borrow another cliche. Therapy is not the only way to overcome confusions in self-perception but it offers an independent and informed perspective that aims to help.