So here's an intuitive, alternative formulation of the second law: Energy becomes as spread out in space as it can as time passes. Frank Lambert is responsible for this formulation, and he has also devoted his life to removing the word “disorder” from textbook discussions of entropy. His website is great if you want to learn more. Anyway this spreading is a statistical consequence of what happens to randomly moving particles that are always bumping into, “interacting with” one another.
Map displaying energy density of radiation leaving earth