The experiment goes like this you do the double slit experiment with all measuring equipment in place. The data collected is read by a computer but not displayed unless an event has a certin outcome. Lets say the Pats winning that nights football game. If Pats win the data is read if they lose the data is destroyed and never read. Whether you observe the interference pattern or the slit pattern should tell you the outcome of that nights game. In the past I have heard that even if a machine measures the outcome as long as it's not viewed you'll always get an interference pattern if that is true this should work.