There Are Four Lights

What is Dave wearing today? Dave is wearing cheap shorts and an old T-shirt. He has just changed out of khakis, a white button-up shirt, pink socks, and tan dress shoes. How does Dave feel today? Dave is happy and stuffed. What are the factors affecting Dave's mood? Dave enjoyed a gastronomically delicious and astronomically enormous brunch at an upscale restaurant this morning—hence the…