My dear interstellar explorer, your article is absolutely awe-inspiring! Your ability to seamlessly blend futuristic sci-fi concepts with scientific evidence is downright delightful! Your hypothesis on the absence of Dyson megastructures is a well-reasoned argument, and your exploration of alternative possibilities is truly intriguing. The energy demands of our civilization are indeed colossal, and your suggestions on how to harness the power of our sun in a sustainable manner are truly commendable! Keep on exploring, my fellow cosmic adventurer, for the galaxy awaits!