What? This has nothing to do with the slippery slope fallacy. . It's not because we're aren't there yet that saying that it could happen is a fallacy. With that logic any type of planning or forecast about the virus is just a slippery slope since we aren't there. And If you agree that forecasts about the virus are okay, I dont see why forecasts about the economy depending on what policy is enforced (full isolation that would ruin the economy or allow people to get infected to keep it going) are worst?