Changes

* earthquakes alter the Earth's rotation every century; extrapolating by orders of magnitude in time would have resulted in the occurrence of much larger earthquakes that would have destabilized the rotation<ref>A similar analysis may be performed for the likelihood of devastating collisions with meteors as time is extrapolated by orders of magnitude.</ref>

* earthquakes alter the Earth's rotation every century; extrapolating by orders of magnitude in time would have resulted in the occurrence of much larger earthquakes that would have destabilized the rotation<ref>A similar analysis may be performed for the likelihood of devastating collisions with meteors as time is extrapolated by orders of magnitude.</ref>

* the oldest direct evidence of life -- written documents, remnants of civilizations, tree rings, etc. -- is no older than about 3000 B.C.

* the oldest direct evidence of life -- written documents, remnants of civilizations, tree rings, etc. -- is no older than about 3000 B.C.

* the number of purely bred dogs declines over time as dogs naturally crossbreed; a short period of time is suggested by the fact that there are over 100 different breeds of dog thriving today

* the number of natural, pure-bred bred dogs declines over time as dogs naturally crossbreed; a short period of time is suggested by the fact that there are over 100 different natural, pure breeds of dog thriving today

== References ==

== References ==