I'd like to understand the wave particle duality and how information traverses space further within the double slit experiment. Let's assume we have two slits, A and B. A is higher up then B, and an electron moves to the right through the slits and hits a final screen. While the electron is in flight towards the slits, let's say slit B is closed; and the information of slit B being closed will not reach the electron until it hits the final screen. What would the probability distribution look like for the final screen?