Is Planck Time a theoretical limit, or a real one? Is it a limit because practically there is "nothing smaller to measure", so might as well call it a limit for convenience? Or is it a real limit? If so, does that mean that everything moves in "jitters" of Planck Length? Like a pixel on a screen appears to move smoothly but is actually jumping around from pixel to pixel if you zoom in.
By the way, ducks are the best. I mean the birds that go "quack", not some sports team or movie. Who agrees with this, please?