The scenario you described involves a thought experiment related to the second law of thermodynamics and gravity. It's important to note that the second law of thermodynamics, which deals with the concept of entropy, is a statistical law that applies to systems with a large number of particles. Gravity, on the other hand, is a force that acts on individual particles or objects.
In an isolated system with a high entropy state where matter is scattered randomly, the distribution of particles would indeed be disordered. However, the second law of thermodynamics does not directly address the behavior of gravity or the motion of individual particles.
Gravity acts as an attractive force between objects, causing them to move towards each other. In the case of your thought experiment, if there were no external forces or influences at play, gravity would indeed start to pull the scattered matter together. Over time, the matter would tend to collapse and form clumps or regions of higher density, leading to a decrease in entropy at a localized scale.
However, it's important to consider that the second law of thermodynamics is concerned with the overall behavior of a system, which includes not only gravity but also other factors such as energy dispersal and the statistical distribution of particles. In a large, isolated system, while gravity may cause local decreases in entropy, the overall entropy of the system as a whole would still tend to increase.
The second law of thermodynamics states that the entropy of an isolated system will generally increase or remain constant over time. This means that even if gravity causes localized decreases in entropy, the overall trend of the system's entropy would still be towards increasing disorder or higher entropy.
Therefore, the thought experiment you described, while interesting from a gravitational perspective, does not fundamentally contradict the second law of thermodynamics.