If you train yourself to speed up your perception, you can see the individual flashes of fluorescent lights. Some baseball players can see a fastball at a slower rate. Seeing individual flashes does not work on LED fluorescent tubes, since I believe there aren't any. I speculate that other dimensions have their own unique temporal rates still within the Planck scale. You may have seen the STNG plots based on different time dimensions. Suppose a dimension has a time signature so unique that it is adjacent to all regions of space without elapsed time. It would be very useful in sci-fi scenarios.