Finetuned Universe

The fine-tuned Universe is the proposition that our Universe is remarkably well suited for life, to a degree that is unlikely to happen by mere chance. A number of scientists have noted that if some of the fundamental physical constants were to vary slightly, the establishment and development of matter, astronomical structures, elemental diversity, or life, as we know it would not have happened.

A small change in several of the dimensionless fundamental physical constants would make the Universe radically different. As Stephen Hawking has noted, “The laws of science, as we know them at present, contain many fundamental numbers, like the size of the electric charge of the electron and the ratio of the masses of the proton and the electron. … The remarkable fact is that the values of these numbers seem to have been very finely adjusted to make possible the development of life.”

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