The possible marriage of Tesla (TSLA +1.53%) and Space Exploration Technologies (SPCX -0.11%) is getting serious attention now that Elon Musk, CEO of both companies, has confirmed that each has formed committees of independent directors to explore a potential merger. Musk isn't participating in the discussions because his ownership interests in both companies create a conflict of interest. And while he cautioned a merger isn't guaranteed, the logic behind combining these two mammoth companies is difficult t ...