How Did Elon Musk Become the Richest Person on Earth?

Two of Musk’s commercial operations, Tesla and SpaceX, have received billions in American taxpayer support. The federal government, Politico points out, has essentially “outsourced its space program” to SpaceX, and Tesla, a shaky electric vehicle company when Musk bought it, only “took off after receiving $465 million in subsidies from the Obama administration in 2010.”

How Did Elon Musk Become the Richest Person on Earth?