PM Cast is a long name for a photo technique I discovered on my iPhone while on a road trip. The process is slightly involved but the results can be unexpected and delightful. First: it helps being in the passenger seat, I used an app to take pictures once every second or two seconds. Then using another app to stitch them together it creates these dreamy blurred landscapes. It helps to have a consistent horizon line otherwise the app that stitches the batches together gets confused and won't create the image.