Reluctance of Portugal coach Fernando Santos to field Cristiano Ronaldo in crucial matches at Qatar 2022 World Cup , my perception; Ronaldo is resisting biological change. The law of diminishing returns states that if a variable input is increased while all other inputs are held constant, a point is eventually reached where the additional output for each additional unit of input, will decline. This law applies best in agricultural production economics. So, my new year 2023 is to engage agriculture experts to reverse my declining yields from my small scale farming.