Hi I know that our world is quite unstable and minor changes in these parameters could make the existence of life impossible. However, I am interested in what exactly is going to happen if we start to increase/decrease any of 30 parameters. It is interesting how well-tuned these parameters are. Some minor variations can lead to a slightly different universe - say, Lead (Pb) can be unstable while Uranium may become stable. Or, elements are stable or too unstable (then "humankind" in such unverse can not develop a nuclear bomb. But there are no unstable elements is the core then they dont decay and Earth core is too cold. No marnetic field around the planet? life is burnt by cosmic rays?) Bigger variation can make the number of different nuclei too small to allow the life to develop. And even bigger difference can completel destroy everything, like, no stablenuclei, or no fusion in stars, or stars burning too rapidly. I know it requires too many calculations and if requires knowledge from the different fields of research, but I wonder if there are such researches at all.