Sponsored content. Us Weekly receives compensation for this article as well as for purchases made when you click on a link and buy something below. Dr. Marco Vietor and Paul Crusius have been creating successful businesses since college. Now they lead hear.com, the fastest growing hearing aid company in the world. This is their story. To be honest, very few people want to wear hearing aids. Although there have been huge breakthroughs in technology, most people don’t use them simply because they think they are still big and ugly. However, Marco and Paul wanted to change this...