roger mcnamee of elevation and our latest fast master. >> fourth. >> series of many. >> so many fast masters, let's be clear. >> everybody is a master, exactly. >> yes. >> interesting point. [ laughter ] >> would you agree with roger on apple? sounds like he's essentially saying the best days are over for now. >> they are. the point about the smart phone history, we're waiting for the next level of invasion and apple is trying to invite and that's something that look, apple is a different investment story. $67 billion in free cash flow a year is something that you can still invest in and something that's probably going to be sustainable for a long time. that to me is why you own apple. >> roger made a point about needing to put money someplace and that would be amazon. karen, as a facebook shareholder, does that concern you there are is certain amount of not bubblishous. >> he talked about aws, dan and i talked about this. it's a great business but i see margins competitive -- >> they actually were down quarter over quarter. if you see a string of that, you want to get the heck out of