darkSpyro

I am aware that of course we are still evolving, and that it's not a case of surviving anymore just basically carrying on, like how some scientists reckon our fingers will evolve to suit the needs of using smartphones constantly. I'm just sort of meaning the people that would be classed as "unfit" wouldn't normally survive, so the strong theory of survival of the fittest doesn't seem to effect us anymore as we find ways of getting around it (like a wheelchair to someone who can't use their legs).

Yes, I know nothing hates us, but the way creatures are naturally eliminated is by disease, infection, killed by a higher food chain predator etc. Nothing does indeed want us gone, but naturally our over-population will still be maintained by disease etc., and as seen over the years, if we keep curing things something bigger will come, even by accident. I know it's hard to understand that concept, and I'm not good at explaining things anyway, but thats just what I think will happen.

Sorry but I will have to disagree here, it would not take much to shake humanity. Take an EMP, we naturally get them for century to century, it's never really effected humanity before because we've never heavily relied on electricity before. Say we get an EMP, wipes a good fraction (if not all) the electrical circuits out on Earth, suddenly theres no fridges, factories have no power (no food being manufactured into packaging etc), no transportation, no mobile phones, nothing like that - cut off from the rest of the world. There would be panic, particularly in larger cities, humans would naturally defend themselves and there family at the cost of others' lives, the population would decrease rather drastically.

Regarding the ability to create medicines, it is achieved through years of testing, sampling from patients, experimenting on patients etc. It can't just happen over night. Say we get some sort of advanced flu that strikes your lungs or something and kills you almost instantly, with the cells showing nothing more than just an ordinary flu. Scientists wouldn't know how to cure it, the patients would be dead too quickly for testing/sampling drugs, and even if they could get some information, it could just look like the common flu (which, is also not actually curable, our bodies just deal with that). Sure it maybe wouldn't come back if you got a cure, it's just getting a cure that's the key.

I don't explain it very well, but Stephen King wrote a similar idea in "The Stand", where America is ground to a halt by a mass spreading epidemic, where only a few thousand are naturally immune to it and have to survive and regroup. It's worth a read if your interested.