If we woke up tomorrow and...
electromagnetic: Well I suppose the bigger question is, does everything the technology created go away too?Technology built everything, but do all our houses disappear or just all the wiring and plumbing and crap? Because if the house goes, then surely so should all the people who were brought about by technology.Realistically there would be approximately (assuming the max for 10,000 years ago) about 10 million people on the planet. If so, with the distribution spread throughout the world then I think if humanity were born with our present knowledge I think we would do rather well, presuming we were swapped out with the Cro-Magnon. I bet about 50% of the people would probably die off within the first decade just through lack of knowledge (again presuming even IQ and knowledge distribution), but if people managed to start bringing back technology I think we could advance things pretty quick.I mean one person with the knowledge of how to make steel and devoted their life to teaching everyone how to make advanced tools, well we'd have skipped 9,800 years in the space of maybe 50.So I suppose it's all in how it would happen and then a large handful of random chance and human nature. I mean if the one guy who remembered how to build a blast forge, also knew how to make gun powder (I know the principle on how to build both) decided to instead of helping the world decided to build a machine gun and build his own country then it could all end when someone usurped him without the knowledge to build tools or weapons.