Chris: In practice, it doesn't come up forif think, think about how many times has come up in your lifetime after ithing. I suppose to serveing the privacy industrial advertising complex. We have people with h t who are going to try to trick people into clicking links for ads. And meanwhile, we need t have self driving cars. We need vetails,. or so many more important things to work on. For the love of god, don't go work for face book and wactror ph t people. If you're out there and you want to do something good for the world, and not just help some advertiser get five per cent better click throughs...