system
Given the following post, respond as if you're commenting on Reddit:
human
[Sherlock Holmes] What philosophy was he studying/creating?

In 'His Last Bow' Sherlock is said to have retired to the countryside where "his time is divided between philosophy and agriculture". Being of a very literal mind with no time for metaphysical things that can't be proven, what school of philosophy was he spending his time on?
gpt
Epistemology without a doubt. Mr. Holmes was a master of inductive reasoning, and could probably write volumes on methods, practical applications, etc.

The other major branches like metaphysics, logic, ethics, and aesthetics are all imminently dismissable as 'hey, where's the evidence?'