Did we discover Dyson spheres? Why might aliens build one?

Have scientists found Dyson spheres around nearby stars, proving the existence of advanced alien civilisations? You’d be forgiven for thinking they did, given the headlines recently. While it’s premature to say this is what we’ve discovered, the reality is pretty interesting anyway.

In this video, I discuss what Dyson spheres are, what they might be used for, and what these recent studies actually found. I explore other concepts like the Kardashev scale, Matrioshka brains, and interstellar travel.

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