The Event speculation
The "aliens" are homo sapiens descendants, from the future.
1) They can pass for human to medical exams short of a DNA screening.
2) They are reproductively compatible with humans with no apparent ill effect.
3) They are apparently perfectly biologically compatible with Earth environments
These things would very likely not hold for any species not directly related to Homo Sapiens. At the very least, anything outside the Homo genus would make these things all coming together essentially impossible. Give us a few hundred millennia, though, and there could easily be a new Homo species that would meet these observed characteristics.
Assuming a hard scifi stance on biology, the sleepers basically *have* to be a homo species. Of course, they could be taking a softer stance on the science, but there are far too many unknowns with that to ground any sort of speculation.
There's really two options from this point. They could be an evolved Homo Sapiens, or an engineered variant. I'm leaning towards time travel, the engineered variant seems too straightforward a conflict. Sure there'd the mystery of who engineered the sleepers, but the sleepers being us seems to fit the story they are building more.
Wonder if this will turn out to be anywhere near how things are.
Anyone who gave up after the confused storytelling style of the first half, it's shifted to a basic chronological format now. It's much better. It has actual mystery, not audience confusion pretending to be mystery.
1) They can pass for human to medical exams short of a DNA screening.
2) They are reproductively compatible with humans with no apparent ill effect.
3) They are apparently perfectly biologically compatible with Earth environments
These things would very likely not hold for any species not directly related to Homo Sapiens. At the very least, anything outside the Homo genus would make these things all coming together essentially impossible. Give us a few hundred millennia, though, and there could easily be a new Homo species that would meet these observed characteristics.
Assuming a hard scifi stance on biology, the sleepers basically *have* to be a homo species. Of course, they could be taking a softer stance on the science, but there are far too many unknowns with that to ground any sort of speculation.
There's really two options from this point. They could be an evolved Homo Sapiens, or an engineered variant. I'm leaning towards time travel, the engineered variant seems too straightforward a conflict. Sure there'd the mystery of who engineered the sleepers, but the sleepers being us seems to fit the story they are building more.
Wonder if this will turn out to be anywhere near how things are.
Anyone who gave up after the confused storytelling style of the first half, it's shifted to a basic chronological format now. It's much better. It has actual mystery, not audience confusion pretending to be mystery.