Judging by how many open problems and paradoxes remain in physics and cosmology, I would not agree with the low hanging fruit being harvested along time ago. It

Judging by how many open problems and paradoxes remain in physics and cosmology, I would not agree with the low hanging fruit being harvested along time ago. It seems more like they harvested the fruit from a spindly looking diseased part of the orchard and missed the healthy part of the orchard. If the physicists and cosmologists were to simply rearrange their models in a more sensible fashion I think they would quickly figure out nature and productivity would return. First there would be a lot of rewriting of all the current information in a much more sensible theory of nature. Then there would be pushing forward on a much sounder foundation. And biggest of all, the applications that would arise are amazing. Imagine drawing energy from spacetime. Imagine manufacturing with spacetime as your raw materials. Clue: Start with taking that Big-Bang/Inflation picture and overlaying it on each of the jets from every SMBH. Now force yourself to believe that as true and it won't take long to figure out what is going on.