Articles like this make it seem that HTML5 aims to solve similar problems as Flash. It is less clear that it is a better solution. The primary argument against

Articles like this make it seem that HTML5 aims to solve similar problems as Flash. It is less clear that it is a better solution. The primary argument against Flash is that in performs poorly, and the primary counter-argument is that Flash developers are writing inefficient code. How will HTML5 stop that from happening?