|Time is money|
Time is money; that we already know. It can be quite easily quantified: the cost of human time at work can be calculated as the ratio between the total monthly cost of an employee (wage, internet, phone) and average monthly number of working hours (168 if you count 8 hours per day and 21 workdays per month).
There is however a „problem“: human aren´t machines, their performance can´t be divided into standardized man-hours. We are the furthest thing from dull manufacturing capacities, processing one task after another. We are influenced by the working environment, weather, time of day, hormones and thousands of other things. As a result we´re fairly unproductive one day and discover gravity or painting Mona Lisa the other.