The same thing has been said in many different ways including, once they’ve seen Paris you can’t put them back on a farm, or you can’t put the toothpaste back into the tube. The arrow of time always goes forward. Hitler’s death pits won’t be undug, and Beethoven’s symphonies won’t be unwritten.
Fortunately our closed system involves a million mile wide ball of hot plasma turning 4 million tons of matter into pure energy every second. Plenty of opportunity for a local system, such as the Earth, to become MORE organized as the rest of that energy radiates away , unused, into space.
Unless you put in energy. People have mobilized in the past, it can happen again.