%B It is shown that there are certain rules which connect a height of previous solar activity cycle with the entropy of the next one. For even and odd cycles these rules are asymmetrical. So if it is known height of the previous cycle one can make estimation for entropy of the next one according to one of these rules. https://www.macorners.shop/product-category/circle-pendant-with-birthstone-beads-necklace-premium-box/