My friend S, a brilliant and ludicrously dry and witty cultural historian, and I have lately been discussing the power of The Story of Your Life. I'd link to what would undoubtedly be her fabulously inventive and witty blog, but she doesn't have one. A travesty. (Are you listening, S?) Anyway. The trouble with The Story is that you write it into your head when you're 18 and it takes 15 years for you to realise two things. First, your Story is now officially retro. You were supposed to be doing the part that comes after happily ever after, right now. At first that doesn't really matter, because you move the Story a couple of years ahead every couple of years. But eventually, that doesn't work because the story all at once doesn't scan any more. Even if (ahem, just for example) the white charger and its worthy cargo were to arrive right now, it would be wearing last season's armour.
The second thing you realise is that this is not the only reason you need a new Story. You need it because, were the charger to gallop into view, stamping and snorting steam and jingling its fairytale bridle, you'd probably raise an ironic eyebrow at it.