Why does steven hawking not want humans to contact aliens?

Answer 1

Hawkings believes that alien intelligence may be looking for resources and their own opportunities. They would likely not be friendly, as our technological superiors, much in the way we regard lower intelligence here on Earth.

Answer 2

Stephen Hawking believed that contacting aliens could be dangerous because they may not have the best intentions towards humanity. He cautioned that advanced alien civilizations may see us as a threat or as a resource to exploit. As a precaution, he advised against actively trying to make contact until we better understand the potential risks involved.