Elon Musk @elonmusk
@flcnhvy @thatdogegirl @WhatsupFranks @TeslaGong Becoming multiplanetary is one of the greatest filters. Only now, 4.5 billion years after Earth formed, is it possible. How long this window to reach Mars remains open is uncertain. Perhaps a long time, perhaps not. In case it is the latter, we should act now. — PolitiTweet.org
