I would leave advanced technology out of the question of Homo Sapiens survival, because if you see things from that point of view, we could say that a super advanced civilization of humans (or space elves, maybe?) is capable of living inside a star simply because they have a starship with the capability to enter the sun and emerge intact later.
Without high technology humans would not survive in worlds with an incompatible atmosphere, extreme temperatures or maybe inhabited by truly dangerous wildlife, but most Fantasy worlds are very compatible with humans because they are often the most important species and the heroes themselves are human.
What would have happened if the air of Narnia had contained some twenty parts per million of Chlorine?
The Pevensies would have noticed immediately that there was something bad in the air, and it would have been just a matter of time for them to fall sick and eventually die because of the poisonous Narnian air.
I wonder why the composition of the air (and air density as well) are never mentioned in Fantasy stories... you can have a lot of fun with that =)
Without high technology humans would not survive in worlds with an incompatible atmosphere, extreme temperatures or maybe inhabited by truly dangerous wildlife, but most Fantasy worlds are very compatible with humans because they are often the most important species and the heroes themselves are human.
What would have happened if the air of Narnia had contained some twenty parts per million of Chlorine?
The Pevensies would have noticed immediately that there was something bad in the air, and it would have been just a matter of time for them to fall sick and eventually die because of the poisonous Narnian air.
I wonder why the composition of the air (and air density as well) are never mentioned in Fantasy stories... you can have a lot of fun with that =)