LIMINAL

When Chamath Palihapitiya joined Facebook in 2007, it had 50 million users. By the time he left after four years, it had 800 million. He was its vice-president for user growth. These days, he feels tremendously guilty. "I think we all knew in the back of our minds, even though we feigned this whole line that there probably aren't any bad consequences, I think in the deep recesses of our minds we kind of knew something bad could happen," he told the Stanford Business School last month and reported for the first time this week. "The short-term, dopamine-driven feedback loops that we've created are destroying how society works. No civil discourse, no co-operation, misinformation, mistruth, and it's not an American problem - this is not about Russian ads - this is a global problem. "We curate our lives around this perceived sense of perfection, because we get rewarded with these short-term signals - hearts, likes, thumbs-up -and we conflate that with

End-of-year school reports are making their way to parents and carers. For many, it's a major contact with the school. Most look forward to the reports, even if their children don't. But what's their value? Do they actually tell parents anything useful? Teachers generally hate writing them. They take up a lot of time, and teachers don't believe they are allowed to be as honest as they would like to be. Their reports are censored. They didn't used to be. Peter Frost (not his real name) teaches in a NSW public high school. "I used to be able to write, for example, that student A had been persistently disruptive, that he didn't follow instructions," he tells me. "Then I was told I couldn't say that. The principal told me not to be negative. But I was trying to be truthful." Truth wasn't appreciated. His principal told him that if a student was described as disruptive, it reflected badly on the teacher and the school. It was bette