I love sci-fi films and TV programs. My understanding as a someone who has no science background other than what I read or see on YoutTube, is that any species that is capable of traveling x numbers of light years to reach our beloved Earth is they would be so technologically advanced that they may likely see us the way we view ants. I am not even convinced interstellar travel is possible by living beings due to the great distances between star systems. Even so I watched this program for its entertainment value. If aliens arrive, and that's unlikely, it will be unfortunately a disaster for humanity and perhaps many other species as well if they decide to strip mine the planet for resources. Lucky for us intelligent life may be exceptionally rare even in a cosmos of billions of planetary systems. Thank you Fermi Paradox! Let's hope we don't encounter the Great Filter of self destruction or natural disaster.