There certainly are solved problems. Is it possible to trisect an angle using a compass and straight-edge? Answer: No. Can we put something into orbit? Answer

There certainly are solved problems. Is it possible to trisect an angle using a compass and straight-edge? Answer: No. Can we put something into orbit? Answer: yes. Precise problems can have precise answers. But open-ended problems - "are there better ways of communication?" - have incomplete answers.