Lagging metrics are usually the ones we care about most. In business, they're things like revenue, sales, or profit. The trouble is, we can't act always act on those directly. By the time we assess our revenue everything we did to get there has already happened, so if we don't like it, it's too late.

Leading metrics are what we need to focus on to drive the lagging metrics. If we want to lose weight we might be better off focusing on eating less and eating healthier, working out more, and sticking to our workout schedule. To increase our revenue we may want to look at deal size, ease of sign-up, or our referral rate.

Paying attention to and improving the leading metrics gives us leverage over the lagging metrics we may really care about.

Leading and lagging metrics

A rather clever way of capturing energy as vehicles slow down is to store the energy you'd use in braking as gravitational energy. This way of storing energy is used on a number of central London underground stations by constructing the stations at the top of a small hill in the track. Once built, the hump-back-station design has the handy effect of naturally slowing trains down as they approach a station and naturally accelerating them as they leave a station. Apparently, on London's Victoria line this saves 5% in energy and helps the trains run 9% faster.

You're not always going to be able to put a slope just where you need to slow down, unfortunately. However, it makes a ton of sense for pedestrian crossings where raising the crossing to the level of the payment means pedestrians don't have kerbs to negotiate and cars are naturally encouraged to slow down.

Victoria line data from Sustainable Energy without the Hot Air, by the late David JC MacKay

Hump-back stations

To feel great joy we have to be ready to feel vulnerable. I found this counterintuitive. As Brené Brown shares, if we can't tolerate joy, if we're not open to being vulnerable, we can find ourselves dress-rehearsing tragedy — when things are at their best we might be telling ourselves that it won't last, we don't deserve it, something will go wrong. An antidote to this she says is to practise gratitude. Be thankful and appreciative of what we have.

For a lightweight intro to some of Brené Brown's work you could do worse than spend an hour watching The Call to Courage on Netflix.

Also see: Hope and Listening with passion

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Joy and vulnerability