August, 2019 Page 8 of 10 change the entire tone of the story, things that are passive, linear, story based require less processing in the system one, are warm and emotional. System two is interactive, computer systems. There is a reason we have a job. You have to think about it. Video games are multimodal. Those are examples of hot and cold and cool media. And the reason that works that way is that if you think about voice being hot, one person is saying something and you are making eye contact and you can transmit an idea, you can watch what the other person is doing. Conversation and when we talk about voice AI in conversation that we give strong guidance, we try to avoid multi turn interaction, follow-up questions. There is so much context that can be missed that breaks the illusion if the system get it's wrong. You have this back and forth. Humans are really good at various layers of verbal communication. Everything from the tempo, the speed, the energy I'm using, the way I am projecting my voice, whether I'm speaking in a monotone or increasing my energy to make a point. Voice system cannot do that, they are very bad at so far. It will take a lot of work but it will happen fast. The hunter gatherer brain, we use stories to understand the world, we are social creatures, we seek echoes about ourself in the world. We are born listeners, language is complex and mediated experiences are fundamentally social and natural and model the natural world. That brings us to us. We create illusions, whether in UI or voice or motion or interaction, UI copy content, all of these things are all story, creating a human voice and layer on top of that. All designers are liars, including me. We are creating an illusion. We live visually to create relationships and model human voice or human intimacy. People can hate obscuritism all they like, but the use of shadows, lighting direction, and physicality, makes those systems easier to use and you don't have to think as much. It attempts to mimic real life. Cortana, again, it is mimicking the emotion and the body language without the body. Amazon Echo follows natural and social rules both in the hardware and the sound design, the thunk sound it makes. The sound designer, he was trying to mimic it, the echo looks like a log, so if you hit it, it makes a thunk sound. It tries to mimic that. The little lights moving around and orienting on you, "I am listening." It's not actually sending anything to the internet. Trust is important in Amazon. You do not violate customer trust. Believe it or not, Amazon is the most ethical company I have ever worked with – don't throw anything – and it is ethical because it has principles that apply to what we do. Customer obsession, ownership, bias for action. Those are things that we evaluate for what we do. Intuitive = don't make me think = don't make me use system two thinking. That is what good user experience is. So it's really easy for us to confuse computers and people. We do it all the time. I have a hard time calling Alexa or Cortana 'it'. But we are very, very different. We have complex distance, those frameworks I showed you, our brains are not trying or shape.