Billionaire entrepreneur Mark Cuban will be exiting “Shark Tank” after the upcoming 16 season after years of deals made with investors. In a recent interview, Cuban highlighted how impressive it is that the show has been on the air for so long. “It’s not being on TV that’s made it special. It’s sending a message to everybody that watches that the American dream is alive and well,” Cuban said on the “Life in Seven Songs” podcast. Cuban told podcast host Sophie Bearman that he always hears that Shark Tank led people to start their own businesses. “My family’s together and we hear it all the time…