> at some point people looking for something already have an answer Yes, that's when you notice a technology is becoming more mature. But that doesn't mean th

> at some point people looking for something already have an answer Yes, that's when you notice a technology is becoming more mature. But that doesn't mean there will not be any new questions however. When technology evolves people will have new questions. So the number of new questions may be a valid metric for how much the technology is evolving. I agree that number of new questions does not directly relate to popularity. To do that IMO we first need to find out the relation between popularity and evolution of technology. > I guess a better metric would be the amount of upvotes over time for questions and answers about a topic To measure the total number of people who experienced that particular problem, yes. Not to measure the popularity of a piece of technology IMO. But I'm not anywhere near an expert on this :)