Historian: The image above is a chart showing the history of science, with many dead ends and some successful ideas.
Physicist: No it is not. That image is a chart of ideas about human rights through the ages.
Historian: Actually it shows evolution pathways as bacteria evolve resistance to an antibiotic. It reminds me of the years we spent helping inventors. Sceptics would say that we are silly because only one out of a hundred inventions does any good.
Physicist: We would give the obvious answer: yes, that is why we need at least that hundred. Watching evolution of bacteria can help us learn important things about advancing science and advancing other parts of our humanity. We can not know where the next good idea will come from, so we embrace all skills sets and all points of view.