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Hara hachi bu (腹八分?), or hara hachi bunme (and sometimes spelled hari hachi bu), is a Confucian teaching that instructs people to eat until they are 80 percent full. Roughly, in English the Japanese phrase translates to, “Eat until you are eight parts (out of ten) full” or “belly 80 percent full”.

The Author

Björn Jeffery is a Swedish technology columnist, advisor, and independent analyst based in Malmö, Sweden. He is the technology columnist for Svenska Dagbladet and co-hosts a podcast for the newspaper. He was previously CEO and co-founder of Toca Boca, the kids’ media company that grew to over one billion downloads. Through his advisory practice, Outer Sunset AB, he works with companies on digital strategy, consumer culture, governance, growth, and international expansion.