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Universe would have had to expand at several times the speed of light in order to reach its present size
Hmmm. Do you have some foundation for this hypothesis?
After inflation the universe is said to have been the size of a grapefruit so I think you need to do a little more reading.
What does redshift of distant objects reveal about expansion of the Universe?
Quote from: jeffreyH on 10/05/2016 08:45:27After inflation the universe is said to have been the size of a grapefruit so I think you need to do a little more reading.If you are right JeffreyH and if your head is as big as a grape fruit, that , according to your research, is how big the Universe would have been after inflation. But according to other theories :“Cosmic inflation is the idea that the very early universe went through a period of accelerated, exponential expansion during the first 10-35 of a second before settling down to the more sedate rate of expansion we are still experiencing, so that all of the observable universe originated in a small (indeed, microscopic) causally-connected region.”Please measure your head and decide which option you prefer.