After skewering the
proposed system («one of the most expensive per mile and one of the slowest in the world»), Musk issued an open - source
design challenge: a 28 - passenger solar - powered
pod capable of levitating through a system of tubes almost at the speed of sound, with a one - way ticket price of $ 20 and a total building cost estimated at $ 6 billion, less than a tenth of the budget for California's high - speed rail project.
Brooklyn - based sustainable
design think tank Terreform ONE (Open Network Ecology) goes even further,
proposing this digitally fabricated Urban Farm
Pod as one way that families can grow food at home, and have a new hang - out space too — combining furniture with farming.