In 2012, Elon Musk (Tesla Motors, SpaceX) proposed this technology. In 2013, he put a plan online that showed the hyperloop train taking 35 minutes to go between San Francisco and Los Angeles in the United States. He shared this technology to the world. In 2015, Musk's company built a test tube. He asked universities and companies to make the test trains. They had two competitions in 2017 to see how fast the hyperloop trains could travel. The fastest test was .