There are, according to the estimate for this month, 6,790,062,216 people in the world. It's hard enough to say the number, never mind picture those people. You could round it up to a less tongue-twisting 6.8 billion, but does that make such a frightening figure any easier to compute? When you try, do you see faces, or just more brain-frying strings of digits?
The sheer vastness of the data we gather in our attempts to understand the world around us has been challenging statisticians since the earliest censuses. The "size of Wales" approach to number-crunching is popular among headline writers; but is it helpful, for example, to imagine the global population in terms of 75,445 Wembleys, or, indeed, 2,341 Waleses? The numbers are still too big.
It's the same with the news we read and hear each day. What does it mean when we're told that unemployment has risen by 281,000? Is that a huge number? Or just a big one? The stories are about people, but it is often hard to see beyond the figures.
If the UK were a village of 100 people... - Features, Health & Families - The Independent
