"The gravitational repulsion created by this small patch of repulsive gravity material would be, then, the driving force of the Big Bang and it would cause the region to undergo exponential expansion... there is a certain doubling time, and if you wait the same amount of time it doubles again, and if you wait the same amount of time it doubles again... and it's because these doublings build up so dramatically, it doesn't take very much time to build the whole universe. In about 100 doublings this tiny patch of 10-28 cm can become large enough, not to be the universe, but to be a small marble-sized region which will then ultimately become the observed universe, as it continues to coast outward after inflation ends."
Quote Details
Added by wikiquote-import-bot
Unverified quote
0 likes
Academics from the United StatesJews from the United StatesCosmologistsPhysicists from the United StatesAstronomers from the United States
Original Language: English
Available Languages (1)
Sources
Lecture 1: Inflationary Cosmology: Is Our Universe Part of a Multiverse? Part I
https://en.wikiquote.org/wiki/Alan_Guth
Revision History
No revisions have been submitted for this quote.
Categories
Alan Guth
24 quotes on TrueQuotesView all quotes by Alan Guth →
Related Quotes
"It becomes very tempting to ask whether, in principle, it's possible to create a universe in the laboratory—or a univ…"
"The Big Bang theory says nothing about what banged, why it banged, or what happened before it banged."
"It is said that there’s no such thing as a free lunch. But the universe is the ultimate free lunch."
"It turns out that the energy of a gravitational field—any gravitational field—is negative. During inflation, as the u…"
"We should not act like we know that the universe began with the Big Bang... we'll see that there are strong suggestio…"
"What the Big Bang theory tells us, is that at least our region of the universe 13.82 billion years ago, was an extrem…"
"The conventional Big Bang theory does not say anything about what caused the expansion. It really is only a theory ab…"
"The conventional Big Bang theory says nothing about where all the matter came from. The theory really assumes that fo…"
"In short what I like to say is that the Big Bang says nothing about what banged, why it banged, or what happened befo…"
"The recent developments in cosmology strongly suggest that the universe may be the ultimate free lunch."