Signal's mantra is based on a lesson Kevin O'Leary told Steve Jobs taught him in their conversations: "Every day, there's three things you gotta get done. That's called the Signal. Everything that stops you from getting it done is the Noise." At the start of your day, you write down the 3 most important things you need to do, that will actually move the needle. Signal helps you focus on that and cut the noise, reminding you through the day, so you get things done.