Mr. Musk, Why Thomas Edison rather than Nikola Tesla?

One of my best child school friends just graduated from UT Austin as a CS major. He was the typical kid that was programming websites during middle school, investing in Bitcoin back in 2011 when Bitcoin was traded for next to nothing, and even building a 3D wood printer in 2014 (probably one of the first printers in Mexico)… In short, I have always seen him as smart as Bill Gates.