Australia is exhibiting at the recently opened Expo Osaka 2025, and it got me thinking about the difference between now and the last time Japan’s second city held the world’s fair in 1970. Back 55 years ago, Japan was keen on showing to the world its miraculous recovery from the devastation wrought on it in World War II and Australia was keen on pushing itself as an advanced economy basking in glorious sunshine while surrounded by sunny beaches. Taro Okamoto‘s sculpture, The Tower of the Sun, was a symbol of the Expo and the Australian pavilion was widely praised for…