Yes. Except, there are human sciences or social sciences where this anonymous communication can play a part. Also meditation or thought exploration is a bit of the scientific process, to find and associate the pattern. Communication helps: bouncing ideas off each other. For the external things though like the movement of planets, frequency of earthquakes, and end of age, I think you properly nail the arm-chair reader / theorist that calls the arm-chair activity 'science'. I confess for much of the science that I know (heard of), I have not necessarily repeated the experiment. For the fraction that I did: time consuming, but worth it. The lab (the world) is where the objective / scientific learning takes place, and it just doesn't compare to the books and lectures. Best laid theories sometimes come up short, and new patterns emerge from the unexpected results discovered from trying. Children may have to repeat the experiment. In summary: the mind does not work well without the lab time, and the lab time does not work well without the mind.