- You know, that makes FAR too much sense. It can't be correct. ;)
- There are non-supernatural alternatives which would still scare the scientists. For example, a huge Goatse, or something with More Teeth than the Osmond Family. Besides, if they were scared by an angel because its existence goes against their beliefs, they would actually be dogmatic and not at all rational. In order to be rational, they would have to remember the Litany of Tarski, which in that case would go: "If angels exist, I desire to believe that angels exist. If angels do not exist, I desire to believe that angels do not exist."
- Uhh huh, so he's really an Angel? Then where were the DoD's equivalents of the EVAs?
- The Department of Defense used Reapers and other Unmanned Air Vehicles (those giant remote-controlled planes) for that. The control schema for a UAV is very like that for a mecha; the big difference, besides form-factor, is that they are unmanned. Even this DoD sees that as an advantage.
- Agnostic is not god-phobic, right? (If you meant atheistic, the answer is no.) And rational definitely is not. Either way, would it not make more sense to have them pick up the angel and start interrogating him while they attempt to discover how his body/brain works/is made of?
- Finding an actual, provable supernatural being of any kind would fascinate any rational, agnostic scientist. Not that most scientists are either rational or agnostic— most belong to a religion and they're about as rational on average as any group of human beings.
- Until Bill & Ted arrive from the past to save us all with their message of lighthearted humor and silliness!
Fast forward a few centuries after reverse engineering the dead Gort cloud remains, and humanity will start a jihad to make Warhammer 40,000 proud against the alien eco freaks. The aliens will never see it coming back to haunt them, either.
- Considering that the EMP would have the least affect on those that don't use electricity in the first place (pre-industrial cultures, Amish, other assorted Luddites, etc.) those groups would both be in the best position to dominate the society that results and have the least reason to seek revenge. If FTL can be reverse-engineered within a few generations, before memory of the attempted genocide fades, a splinter group could try to start up the jihad described above, but Earth as a whole would be unlikely to go along with it willingly. Of course, if the aliens decide to just ignore humanity for several thousand years, the above scenario could still happen without Earth involved.
- Very Incorrect. There would be a 10.000 years long period of Luditism and anti-technology/knowledge movement that would make sure any remaining technology or records are destroyed as the works of the Devil and the source of Humanities punishment. If one day these Humans re-develop industrial technology, long after they forgot the reasoning and lessons for their Religious institutions unreasonable institutionalized fervor against technology and science of any sort, thousand of years from now, they would need to ravage nature again and now even more because the easily accessible sources have been already drained by the destroyed civilization before them. Which would force yet another visit by the Aliens and this time they would just sterilize the planet with no warning. The End.
- Or would it be this bleak? Humanity could use steam power without fossil fuels, and make it effectively renewable by using wood as fuel - steam power gives way to steam turbines and turbines give way to electricity... in time, humans may find a way to get back some of their previous technology, including weapons. As the above scenarios suggest, any new expedition by the aliens may find a surviving, yet extremely vengeful and angry human race, ready to bite back.
- Human: "Take this message back to you people." *BOOM!*
- It gets worse. The environment's carrying capacity would probably be unable to support even half of our population without modern tecnology. Entire ecosystems will go extinct while we attempt to rebuild because hunger comes before environmentalism.
They should, indeed, give up or blow us all up. It's not like this is gonna be better for the non-humans on the planet than the pre-attack status quo.
- That is before we eat/consume/assimilate them, because we haven't forgot about what they did to us.
- In this timeline, a more threatening and dark Klaatu arrived in the 50s but did a more private demonstration and warning to just a few selected people. Those selected realized that there was no way in hell that they'd be able to do everything Klaatu asked them to do, so spent the next half-century reverse-engineering what little tech he left behind to create the lanyards. It was originally hoped that that technology would be able to be shield the whole world, but before they could create larger versions of it, the blackout came from Klaatu's people.