Do butterflies or whales give us anything tangible of value? No, but that doesn’t stop us from being fascinated by them and wanting to learn more about them and how they live. Why wouldn’t the same be true of aliens? Why do scientists like him diminish the range of curiosity other beings might have and see them as just seeking transactions? It’s funny how we earthlings admire scientists the more boring and useless they say humans are.,(reply>), Aliens will be interested in learning about other intelligent species. There will be abductions and experimentation. They will do medical and psychological experiments. Aliens will experiment first, so they know how to proceed in an invasion. <br><br>Like in the movie "colony" where the aliens did psychological and medical experimentation on people to learn about people. They try to figure out how people react in various situations. (Are they altruistic, etc.?). Then, they use this information to plan how they will do an invasion.,(reply>), Good luck!