The Hand You are Dealt
There are rules to the game i.e. laws of nature.
There is also the “best way” to play a random hand accounting for the random interaction with other players. This “best way” is not a rule of the game but a player learns it as they gain experience with the game.
The “best way” is not a rule of the game, i.e. laws of nature, but it is quite objective although based on the human experience.
This simple analogy offers an objective basis to morality. An area of the human experience increasingly thought today to clearly be a subjective matter.
