You think this is an option. It is not." And in a strange tangent, Musk also said that "Ford & Tesla are the only 2 American car companies to avoid bankruptcy", perhaps a rejoinder to his April fool's joke that Tesla has filed for bankruptcy.
In her "open letter to Elon Musk", Arianna Huffington accused the CEO of "demonstrating a wildly outdated, anti-scientific and horribly inefficient way of using human energy. It's like trying to launch us into our clean energy future (or into space) with a coal-fired steam engine. It just won't work" adding in a tweet that the Tesla founder should change the way he works.
She also compared Musk's burn out to that of "visionary American leader, FDR" and, by implication, Musk's effort to build cars to the US war against Nazi Germany:
In 1940, America was at a precarious moment in history. Britain was struggling in the war, with both supplies and money running low. They needed help, but Roosevelt knew Congress would never simply loan Britain the money. So instead of putting in 120-hour weeks, FDR instead took a ten-day break on a naval ship. The trip drew criticism, but FDR knew what he was doing -- he needed time and space to refuel. The result was the $50 billion Lend-Lease program, which has been described as his political masterpiece that provided a way for him to sell Congress on helping the Brits continue to resist the Nazis.