Why is theta called theta?

Why is theta referred to as theta? It's a question that often baffles those new to the realm of cryptography and blockchain technology. Could it be a random choice, or does it carry deeper significance? Is theta named after a mathematical concept, or perhaps a historical figure? Does it have ties to the Greek alphabet, where theta originates? Or is it simply a convenient shorthand for a more complex term? Could it be a nod to a specific theory or idea in finance or computer science? Or, maybe it's a cultural reference, hinting at something within the cryptocurrency community? Unraveling the mystery behind theta's nomenclature could provide insights into the world of digital currencies and the thought processes behind their creation.