Back in 2020, somewhere in the strange early weeks of lockdown, I sat down and wrote a blog post about curve balls. I opened it by reminiscing about the Australia 2020 Summit — that moment in 2008 when we all gazed toward the year 2020 as some mystical far-off time when anything was possible. Self-driving cars. Landing on Mars. A cure for every disease (I noted the irony even then). I poked fun at my own track record as a prophet, having once confidently predicted that camera