Is There Any Other Intelligent Life On Earth?
Is There Any Other Intelligent Life In The Universe? A living being like you or me usually has two elements:a set of instructions that tell the system how to keep going and how to reproduce itself, and a mechanism to carry out the instructions. In biology, these two parts are called genes and metabolism. What we normally think of as 'life' is based on chains of carbon atoms, with few other atoms such as nitrogen or phosphorus. Carbon atoms should exist at all, with all the properties they have, requires a fine adjustment of physical constants such as the QCD scale, the electric charge and even the dimension of space and time. If these constants had a significantly different values , either the carbon atom would not be stable or electrons would collapse on the nucleus. For the Strong Anthropic Principle, one supposes that there are many different universes , each with different values of physical constant. That values allow the existence of the carbon atom which act ...