visualizing life expectancy vs wealth vs time
This is an excellent use of visualization to explain or analyse data. It’s really a shame he didn’t play it more slowly and explain more of the data.
Video: Hans Rosling - 200 years in 4 minutes
Can you imagine how much harder it would be to see the trends in raw data? Or to try and do a three dimensional graph for each country? In general, I strongly suggest putting a little time into making data easy to interpret - I tend to notice more trends that way and it’s so much easier to explain graphical data.
My only concern about the video is that the income isn’t clear - are dollars normalized to 1800 dollars (accounting for inflation)? Is there a stronger or weaker correlation if income is represented in terms of typical essentials (food, clothes)?