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Humans want to be happy. But how can we tell how happy we all are? With so much of human communication taking place on social media, it seems a pretty good place to start. The Hedonometer measures our happiness based on one of these platforms: Twitter. 

It’s difficult to know exactly how many people use social media every month, but Twitter has somewhere around 336 million monthly active users worldwide. It’s a data-rich goldmine just waiting for us to use it to better understand our communal wellbeing.  

This is exactly what the Computational Story Lab has done. In 2013, this international group of mathematicians and computer scientists collaborated to create the Hedonometer. The Hedonometer measures happiness based on tweets published. We can predict when we are going to be happy, think Christmas Day or Mother’s Day. But misery is more unexpected, linked to news and political events.  

How do you work out how happy Australian Twitter is? 

To understand our communal happiness, the Hedonometer team created a list of 5,000 of the most common words merged from Google Books, the New York Times, music lyrics, and Twitter. This came up with a set of 10,000 unique words. Each word was measured on a scale from 1 (sad) to 9 (happy). For example, laughter is a solid 8.5 (out of 9), while murder ranks at just 1.48.  

Each day, the Hedonometer rates roughly 50 million Tweets posted on Twitter (which only makes up about 10% of all published content) and ranks them all from happiest to saddest based on the words used. With hundreds of millions of people using the website daily to share their thoughts and interests, it’s a pretty important social signal of mass wellbeing. 

This hanging sculpture is ranking Australia’s happiness, but you can check out the Hedonometer website for a ranking of global happiness. 

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