Sure, you can turn that clock back. Living in different countries or cultures can help break down perception, exposing misconceptions and the fundamental belief

Sure, you can turn that clock back. Living in different countries or cultures can help break down perception, exposing misconceptions and the fundamental beliefs you took for granted. In a more dramatic fashion, LSD and a few other substances, as well as strong spiritual and near-death experiences can lead to a sudden shift in perspective. After such an experience, you might find yourself spending a lot more mental effort observing the world around you, as the filters you've relied on are removed from your field of view. It might even be observed that abuse of certain substances, such as alcohol, could at least temporarily reverse a person's level of mental development (Woot, happy new year!). It's far from being as tested and documented a science as developmental biology and psychology, but there are various commonly practiced methods for disrupting the progress of that mental development clock from a smooth arc to a more tangled shape.