It seems that it's impossible for people to show charts without making mistakes in data presentation. This website is literally for showing data, and I'm not an expert and I still see errors all over.<p>For instance: Secondhand smoke deaths by age [0]<p>They show absolute numbers. You can see that for 70+ year olds, the quantity is increasing at 2016 compared to 2010 and 2005. But, how do we know that it is because the rate is increasing, or just because there are more 70+ year olds? If they had shown each age range divided by the total amount of people in the age range, it would have prevented this.<p>Every time I see absolute numbers in any kind of data visualization, immediately an alarm goes off I start to analyze whether that makes sense or they needed percentages, and many many times they messed up.<p>[0] <a href="https://ourworldindata.org/smoking#secondhand-smoke-deaths-by-age" rel="nofollow">https://ourworldindata.org/smoking#secondhand-smoke-deaths-b...</a>