Changes

== Einstein on singularity ==

== Einstein on singularity ==

Some scientists argue that when Einstein's [[General theory of relativity]] is extrapolated back to the beginning [of the universe] it is discovered the equations blow up in the region of singularity or a [[Singularity#The_big_bang_singularity|cosmic singularity]], respectively.<ref name="BBC"/> Einstein himself however expressed his following views on this matter: "One may not therefore assume the validity of the [field] equation for very high density of the field and of the matter and one may not conclude that the beginning of the expansion must mean a singularity in the mathematical sense. All we have to realize is that the equations may not be continued over such regions."<ref name="DeniableDarwin"/> [[John Hartnett]] also points out that there is no known mechanism to start the universe expanding out of singularity - the equations in the theory only work after the expansion has begun.<ref name="DismantlingBB"/>

Some scientists argue that when Einstein's [[General theory of relativity]] is extrapolated back to the beginning [of the universe] it is discovered the equations blow up in the region of singularity or a [[Singularity#The_big_bang_singularity|cosmic singularity]], respectively.<ref name="BBC"/> Einstein himself however expressed his following views on this matter: "One may not therefore assume the validity of the [field] equation for very high density of the field and of the matter and one may not conclude that the beginning of the [[Expanding universe|expansion]] must mean a singularity in the mathematical sense. All we have to realize is that the equations may not be continued over such regions."<ref name="DeniableDarwin"/> [[John Hartnett]] also points out that there is no known mechanism to start the universe expanding out of singularity - the equations in the theory only work after the expansion has begun.<ref name="DismantlingBB"/>

== Biological singularity ==

== Biological singularity ==