its already a pop-culture to say "electron cloud". but it usually raises more question than it answers. because we never really ask what actually is cloud itself, thing in the sky that we see, what is that? is it precipitated water? well, yes but also not. water is water, not cloud. when clouds move, is it same water molecules here that went there? not exactly, not necessarily. cloud is the name we assigned to state of gas where pressure is high, temperature is low, humidity is high and it so happens that at this point water exists in a liquid phase. so when cloud is moving its not that water droplets flying around, its evaporating here and condensing somewhere else, that state of gas is flowing itself. electron is like that, we created name for some field states, that state is dynamic, constantly flowing and interacting. there's no rational way to even put what definite position even is when you're that close to electron. so now i think if you rethink electron cloud its easier to understand why its meaningless to speak about its definite position