Elon Musk has given us a perspective on the more widespread use of electric cars, batteries for energy storage in general, rockets that can land for reuse, rapid innercity transit via near-vacuum tubes... Wouldn't it be a good idea "to return the favor"? Have the creativity that is stored in each of us put to good use, bring forward and discuss truly new ideas? I don't mean suggestions for product improvement. Those are already covered in various threads.