If we woke up tomorrow and...
nixme: Are you asking this question in reference to last night's Battlestar Galactica finale? It was somewhat surprising to see everyone give up technology so easily and start anew with just clothing, some food, and their own language. But I guess being cooped up in those ships for that long and seeing how the abuse of technology led them to such events could have that effect.To answer your question, it's hard to guess. Without medical or agricultural technology, I think most of our current population would die out. The rest would war over the remnants of societal structure. Technical progress, as we see it, would take a long time to begin -- primarily dependent on stability. There are too many unpredictable events that would alter the length of time before returning to stability and our current standards.