It's such a joke how people talk about series like CSM having depth when there is a series like Heart Gear that deals with the duality of not only man and machine, the purpose of one's existence, master and slave philosophical dynamic, philosophy of life and death, philosophy of humanity (what it means to be human), and more. In the latest chapters with R & D, the mangaka introduces the duality of preservation of the present vs. the future and a subtle political narrative. On top of that Heart Gear also has better art, wtf is wrong with people.
Compared to CSM because both series have the same editor