@clacke My favorite part is this.
"But Klarten was not impressed. The first radio sets his race had built were now fossilized in strata a thousand million years old. Man, who had possessed electrical machines for only a few centuries, could not compete with those who had known them for half the lifetime of the Earth."
It's a little dated and incorrect, but just imagining aliens whose vacuum tubes and transistors were fossils in rocks a billion years old. 🤯