My phone screen is a bit over 500 ppi. I tried it full screen across the entire range that it's in focus (I'm mildly nearsighted), and I could just see the thi

My phone screen is a bit over 500 ppi. I tried it full screen across the entire range that it's in focus (I'm mildly nearsighted), and I could just see the things spinning across the whole field if the pinwheels were big enough to see motion at all. Maybe it doesn't work on small/AMOLED screens?