Where do new ideas come from?

Where do new ideas come from?

We are lucky to live in the 21st generation where great inventions have already created such as ipods and light bulbs. New ideas lead us to inventions that make our life easier. Then, where do new ideas come from? I think curiosity is what makes us to think about new ideas. Back in the ancient time, people started to cook with fire because they were curious about what fire is. If no one was curious enough to even try to cook food with fire, no one would have realized how useful fire is. Even in these days, people are still curious about how they can make something better. For example, apple just invented ipad because they wanted to make something better than other laptops. To conclude, I think curiosity led new ideas. Until people stop asking themselves and being curious, there will be new ideas, forever.