The book is driven by a lot of people buying this stuff with their very inflated cryptocurrency so you know those two things are very very tied very correlated. You talked about some of the people that you interviewed for the creative curve like I'm curious the process there. How did you decide who you want to interview and then how did you get them to agree to? Yeah, so it was a mix of things so you know basically I made a spreadsheet and I wanted to have sort of a mix of experiences a mix of industry is.