figure out where these comes from. So here's some spoilers, and I don't believe spoilers ruin a good story and I think the story that holds our methods is a great story. This has fencing, fighting, torture, poison, that is the 'Princess Bride'. This is has bearded potential, naval navigation, death, dying and lies and a 50-year argument about 20,000-year-old ideas about what it means to truly know anything. At some point I will use the word 'epistemology' and I'm not sorry about that. So what does it mean to look back? Well, as far as we can to fight anything we still think of that is still UX. I think if we go back far enough we hit contextual design. To 1998, which is last century, and it's about designing systems that reflect the way customers want to do their work. And so without getting into definitional wars, I think that's a pretty good way to think about what UX is. I like this for two reasons. As an origin, they are specific about using post-it notes to do research synthesis. The other reason is that almost as specific about the foundation of their approach. So I'm going to pick out a few things that they talk about as their philosophical background that informs everything they talk about in contextual design. The first one I'm going to talk about is probably the weirdest and as I go on you will see that's a fairly bold claim. It's a book written by two people, by Terry Winograd, the taller one in the left-hand photo who was an artificial intelligence researcher before he reached closer to the human interaction end of things. In the 1970s he wrote language processing systems that are better than Siri. He was also Larry Page's chief adviser before Larry Page dropped out to start Google. The other person who wrote the book was Fernando Flores, he was in the Government from Chile in the 1970s. To shed light, he was the Marxist forced out in a CIA-staged coup in favour of Pinochet. Fernando was the guy who commissioned project Simonson. It looked like this. It's not too much of a stress that Terry Winograd and Fernando