# [Shave Your Head][2] 1. Shave your head 2. Use the inseam of your pants to cut a 6-in strip of cloth 3. *Survive* 4. Come back when your hair is 5.5 inches 365 days is a *long* time to survive and the first couple days will be crucial (you'll be at your peak). Depending on the environment, hygiene and safety might necessitate a buzz anyway. [Keep it simple][2]. Since the hair on a human scalp grows about [6"/yr][3], come back when your hair is 5.5" and chill for a month. --- ### Sidebar If you were to visit a national park in the US, you would have overall mortality rate of [`0.26` deaths per `100,000` visits][1]. If we are generous and assume 'visit' is an 'all-day visit' and assume that `365` consecutive 'all-day visits' won't increase this rate, then we would expect `94.9` deaths per `100,000` or about `1/1,000`. Now instead of a planned, year-long visit to a national park in the US, you are on an unplanned, year-long exile to the wilderness of an alien planet. Figuring out *when* you are going to be rescued is inconsequential to figuring out **how** you're going *to survive*. [1]: https://www.ncbi.nlm.nih.gov/pmc/articles/PMC1304948/ [2]: https://www.wikiwand.com/en/KISS_principle [3]: http://www.webmd.com/skin-problems-and-treatments/hair-loss/science-hair#2