By definition, platinum or below is the bottom 80% of the player base. No matter how good the sc2 population gets, around 80% will ALWAYS be platinum or below.
That doesn't necessarily mean that the skill level for platinum or below will always be static though. For example, the korean server is generally regarded as more difficult. A platinum player on the NA server might only reach gold there (or might still be platinum but lose more).
But you are definitely correct that their mechanics are the main thing that separates most top players. I would emphasize macro as being much more important than micro though.
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> 80% of players are at platinum league or less
By definition, platinum or below is the bottom 80% of the player base. No matter how good the sc2 population gets, around 80% will ALWAYS be platinum or below.
That doesn't necessarily mean that the skill level for platinum or below will always be static though. For example, the korean server is generally regarded as more difficult. A platinum player on the NA server might only reach gold there (or might still be platinum but lose more).
But you are definitely correct that their mechanics are the main thing that separates most top players. I would emphasize macro as being much more important than micro though.