As you get dressed, you say to your shirt, “Turn red.” It becomes red. In 2035, “smart clothes” contain nanoparticles that carry electricity. So you can program clothes to change colors or patterns.
On the way to the kitchen, you want to call a friend. Your cell phone is by the window because the material it’s made of takes in energy from the sun. But you don’t need to pick up the phone. You can just touch your jacket sleeve to make the call.