> They might be, but if so, they came here to learn from us. It's hard to imagine aliens travelling across interstellar space to observe our early-stage civ wi

> They might be, but if so, they came here to learn from us. It's hard to imagine aliens travelling across interstellar space to observe our early-stage civ with a serious expectation of learning from our tech. If you went back to ancient Cartage, or Athens, or Babylon, you might expect to learn a lot of things from them. But would you expect to learn from their tech? Mind you, those ancient earth civs are merely single-digit-thousands of years behind ours. Given that the universe is billions of years old, it seems unlikely that any visitors would hail from civs which are close enough to us on the "tech tree" to to consider our tech worth serious interest. They could easily be a billion years farther up the tree!