Recently I started playing Widelands with some of my friends. What was quite cumbersome was that the Tribal Encyclopedia is missing most of the information for Production Performance. The barbarians only had some information missing, but for the other tribes there were almost no information available. We first thought that Calculation needed meant that this information would be available some time after the relevant building had produced some units.
For newcomers it's a good guidance to know how long it takes to produce the wares, just to get an idea on how to scale the economy. What calculations need to be done to have these information available for all tribes and buildings?