Yaku slide started the day google went public. By two thousand and 15 it was gone. 23 years from start to finish, and there's nothing anybody could have done to stop the slide. What happens in any given day at yahu is driven more by what jack ma is doing it ali baba that day, than anything mari samaia can do. Here i'm going to talk about the implications of this compressed life cycle. Because everything we know in business and finance was designed for twentieth century company. I'll give you a personal example of what we do in finance that i think we need to rethink. Have any of you done a discounted casl valuation? Just show up