97200. In commemoration of my twenty-one (1999-2020) years on the web 97210 March 2020 Machiavelli's keen observation 97209 March 2020 How much is luck a factor in our lives? 97208 January 2020 "We dig up a small channel along the hill" 97207 December 2017 The owner of the ball 97206 December 2017 Who is going to grow the potatoes? 97205 August 2017 What is the difference? 97204 June 2017 The nonirrigated vineyard 97203 May 2017 The nonexistent groundwater data 97202 September 2015 The diffusion wave model 97201 August 2015 The salt predicament