May be you are right but it is hard to invent things just by dreaming, it might have been easy for people back from about 150 years when there were a lot of things that still needs to be invented and the Ideas that was needed were super small which they could be dreaming ..

Although I have dreamed about making new products I also feel that it's not so easy to accomplish these dreams in reality .Anyway Thq for all the support @merryslamb