Suppose the stories of alien abduction are true, that would rule out a lot of possible human technological developments over the next few hundred years. Would it not? Aliens are far more technologically advanced than we are, they have far more developments right now than we can hope for in quite some time. With that said, what things that exist in sci-fiction that will never exist in real life?
>Mind uploading
There has never been an alien abduction story where a person was probed by a machine hosting the mind of an alien. In fact, why would aliens keep their fleshy bodies if they could mind upload? Seems to me that such a thing isn't possible.
>Perfect mind wiping
The fact that people can still remember some details, at all, about their abductions means that even aliens can't completely wipe people's memories.
>Memory alteration
I also haven't heard of a story where someone had a fake memory in place of their abduction. They usually just blank out. If aliens could alter memories, they would use this instead of leaving suspicious holes in people's memories.
>Complete genetic overhaul
If an alien can edit their genes to the point of genetic perfection, all alien species would have the same/similar perfected mutant form. You can argue that maybe they are just one alien species, and the different "breeds" of aliens are just specialized for whatever job they do. But to that I ask, are the forms they take really suited for their job? How does a reptilian body make your job easier?
>Get supplies of humans from governments
Why abduct humans in the first place if they're covertly working with major world governments? Just about any first world country can very easily make a person disappear, and hand the human over to an alien. America makes children and adults disappear all the time for trafficking or other purposes. The fact that aliens have to abduct humans, rather than get them from their nearest black market, means that they either prefer this method over quiet supplying, or they are not working with governments at all.
Anything else we can deduct from alien abduction stories?