It means that energy without any intervention, will always degrade/decay rom higher order to lower order.

Think of the sun, one day after millions of years, all it’s energy will be lost as heat and light to the universe.

Wow kopitiam so many physicists

We have so many talents in Malaysia

When talk about MH170, all the aeronautics engineers come out

When talk about COVID, all the epidemiologists and virologists come out

When talk about thermodynamics, all the nasa engineers come out