Contributors: Open to all Discord Channel:⌗fermi-gym How many trees are there on Earth? What is the weight of the atmosphere? How tall can a mountain be? What is the total length of DNA in a human cell? Questions like this are perfect fodder for the art of Fermi estimation, the cultivated skill of posing and answering arbitrary quantitative questions using a variety of rough and ready estimation, assumption, and approximation techniques, informed guesswork, tasteful googling, and high-schoo...
