TGC Australia recently published an analysis by Dr Sarah Quicke of whether we are experiencing a 'quiet revival' of interest in and/or conversion to Christianity here in Australia. It does it a good job of describing the difficulties involved in both gathering and interpreting data about religious beliefs and behaviours, e.g. the difference between the 44% who (still) call themselves Christian and the 8% of people aged 18-35 who actually "believed and lived out the gospel." Quicke refers to the very insightful McCrindle report An Undercurrent Of Faith , released in March 2025, which uses an analytical method called cohort analysis to try and work out how a particular group of people tend to behave over time. The purpose of this post is to draw attention to one element of that report which agrees with Quicke's analysis but also adds some detail to it. Here is what the cohort analysis showed about different age groups' identification with Christianity: As y...