Moore’s Law is based on an observation of transistors in an integrated circuits. Its statement is that the number of those transistors on a macrochip double every year. It is rather an emperical observation than physics low.

Moore’s Law refers to technological development and increasing performance capabilities of computers. While computetional progress is increasing, the costs of it are decreasing. The annual growth rate of this progress is counted at 41%.

Moore’s Law was used for over 50 years to conduct long-term planning and set goals for research in developments of computetional industry. Advancements, such as increase in memory capacity or number of pixels in digital cameras, are strongly linked to Moore’s Law.

Sources:

Moore’s Law, Carla Tardi (https://www.investopedia.com/terms/m/mooreslaw.asp)

Moore’s Law (https://en.wikipedia.org/wiki/Moore%27s_law)