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Why “Weighty Thoughts”?
The symbol theta is often used for learned weights—which is what machine learning models actually learn in order to make them work. They’re usually just a matrix (and usually just a single column) of floating point numbers, but it sometimes costs millions of dollars to get there and is what makes the “magic” of AI happen.
This Substack isn’t just about AI, but given my own background, having this cool domain name (hey, I think it’s cool), and the reference to what the symbol means came together into the name.