Musk wants to implement the project in Los Angeles, hoping that his initiative will help to solve the problem of traffic jams in the city.
The businessman started implementing his idea of digging an underground tunnel under Los Angeles early in the year.
The inventor announced the project in late December 2016. He complained that he was very annoyed by the traffic jams in LA and therefore wanted to dig underground tunnels. Many interpreted this statement as a joke, but later the business magnate confirmed his intention.
Previously, the South African-born billionaire presented other ambitious projects, like, for example, his Hyperloop transportation system. Proposed in 2013, the Hyperloop system envisages mass transportation at speeds of up to 800 miles per hour via low-pressure tubes. According to Musk, the technology would be ideal for connecting cities at a distance of up to 930 miles.
Musk's other ambitious idea is his Neuralink startup. The company is supposed to develop neural interface technologies that connect our brains to computers.
Musk wants to literally build a computer that can be inserted into the human head and integrated with the brain. Eventually, brain chips could be used to supplement and boost cognitive capacities, resulting in increased intelligence and memory.