>Anyone who claims to know for certain what the impact will be, is a fool or a liar. Why do you need to know for certain? If you're trying to make money, or e

>Anyone who claims to know for certain what the impact will be, is a fool or a liar. Why do you need to know for certain? If you're trying to make money, or even just "get by", you look at probabilities of possible outcomes and make your best guess on how to approach the problem. A mentality of "no one knows for sure, so it's pointless" is oddly unscientific. You only need to be "right" some of the time.