Now to assert, as [[Charles Darwin]] did, that all of life derives from a single ancestor, necessarily requires a great deal of time—[[deep time]], to be specific. Enter Sir [[Charles Lyell]], a [[geology|geologist]] and a [[law]]yer who used his considerable skill as a [[rhetoric]]ian, more than any true [[science|scientific]] insight, to argue that ''the same processes in operation today for the formation and laying down of rock have always operated for all eternity.'' This is the classic position of [[uniformitarianism]]. Technically, uniformitarianism is a concept unique to geology. But [[astronomy]] largely copied Lyell's ideas and came up with uniformitarian ideas of their own. | Now to assert, as [[Charles Darwin]] did, that all of life derives from a single ancestor, necessarily requires a great deal of time—[[deep time]], to be specific. Enter Sir [[Charles Lyell]], a [[geology|geologist]] and a [[law]]yer who used his considerable skill as a [[rhetoric]]ian, more than any true [[science|scientific]] insight, to argue that ''the same processes in operation today for the formation and laying down of rock have always operated for all eternity.'' This is the classic position of [[uniformitarianism]]. Technically, uniformitarianism is a concept unique to geology. But [[astronomy]] largely copied Lyell's ideas and came up with uniformitarian ideas of their own. |