Your call for clarity has merit, but I think you have backed yourself into a corner, honestly.
In 1900, there was no evidence of the kind you seek that lighter-than-air flight was possible. Good thing some people were foolish enough to ignore you then. Why you would cordon yourself off from the kind of reasoning that predicts legitimately new things, rather than just scaled up versions of the present?
Not to put too fine a point on it, every example you give is based in concrete evidence, some try to think through the implications farther than others, resulting in larger or smaller error bars around the conclusions.
Let me back up though. Maybe in the collaborative human effort here, we are better off having very concrete thinkers, like you seem to be, along with abstract thinkers like the "divorced-from-reality" Rationalists. Personally, I wish we had a stronger culture of collaboration and assuming good-faith and competence in our peers. In my experience, blanket dismissals are very rarely grounded in reality and mostly grounded in fears.
In 1900, there was no evidence of the kind you seek that lighter-than-air flight was possible. Good thing some people were foolish enough to ignore you then. Why you would cordon yourself off from the kind of reasoning that predicts legitimately new things, rather than just scaled up versions of the present?
Not to put too fine a point on it, every example you give is based in concrete evidence, some try to think through the implications farther than others, resulting in larger or smaller error bars around the conclusions.
Let me back up though. Maybe in the collaborative human effort here, we are better off having very concrete thinkers, like you seem to be, along with abstract thinkers like the "divorced-from-reality" Rationalists. Personally, I wish we had a stronger culture of collaboration and assuming good-faith and competence in our peers. In my experience, blanket dismissals are very rarely grounded in reality and mostly grounded in fears.