A youtube video does not make a project real. A reddit post does not make a project real. Adding a bridge to OSM does not make it real. insisting a bridge will eventually exist does not make it real. Wanting a thing to exist does not make it real. 

 We only map things that exist. We don't map fantasy, we don't map things we want to exist and we don't map unofficial proposals. 

Unless people are actually out there on the ground building this bridge it has no place on OSM. 