Exponential decay

Exponential decay refers to a process where something decreases at a rate proportional to its current value. This means that the more you have, the faster it diminishes. A common example is radioactive substances, which lose half of their mass over a fixed period, known as the half-life. In everyday life, think of a sandwich: if you eat half today, you have less for tomorrow, and if you keep eating, the amount quickly becomes very small. This concept is important in fields like physics, biology, and finance, illustrating how certain quantities can diminish rapidly over time.