The common idea that scientists reject a theory as soon as it leads to a contradiction is just not so. When they get something that works at all they plunge ahead with it and ignore its weak spots. . . scientists are just as bad as the rest of the public in following fads and being influenced by mass enthusiasm.
I think many of the boundaries that convention has placed upon us are arbitrary, so we can fiddle with them if we fancy. Gravity's hard to dispute, and breathing, but a lot of things we instinctively obey are a lot of old tosh.