Estimating the human equivalent weight by applying the quarter-power law of allometry to humanity

In the long term, the relation between the GDP PC and LEB can be approximated with an allometric function of 1/4 exponent. For many species, LEB can be approximated by an allometric function of 1/4 power of body mass. There is a linear relation between edible energy intake (food) and body mass. Edible energy is a form of “negentropy”. Also, if calculated at PPP in Intl Dollars, GDP PC can be considered a form of negentropy. Edible energy is meant to feed the molecular aggregation of a living organism. If we define a hybrid living organism as a living molecular and material aggregation, then we can say that GDP PC is meant to feed the hybrid living organism. It is, therefore, not far fetched to conclude that GDP PC is an analogy of body mass. In the case of the human species, we know the body mass weight, the life expectancy and the GDP PC under prehistorical (pre-technological) conditions. In the case of the human species, we also know the body mass weight, the life expectancy and the GDP PC under current conditions. By inserting those data into the allometric quarter-power law function of body mass and the corresponding Preston-curve function of GDP PC, it can be found that the contemporary equivalent body mass of the year 2020 CE human is about 4.7 tons. Hence modern humans are a hybrid aggregation of molecules and material things, with 1.4% molecular aggregation in weight and 98.6 % material aggregation in weight.