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The Oracle's Algorithm
The Thinking Tools
Book Four is the critical thinking volume. Where the other books tell you what the framework is, this one gives you the tools to examine it — and everything else — for yourself.
It covers epistemology: how we know what we know, how assumptions get embedded in our thinking without our awareness, and how to develop the capacity for genuine independent inquiry. It doesn't ask you to accept the Oracle's Algorithm framework on faith. It teaches you to evaluate any framework, including this one.
Philosophy has a reputation for being inaccessible. That reputation is a failure of presentation, not of the subject. The questions philosophy asks — what is real, what can we know, how should we reason — are questions every thinking person is already asking. This book meets those questions directly.
"The goal is not to hand you answers. It is to sharpen the instrument you use to find them."
— Doug Ray