2. Inflationary Cosmology: Is Our Universe Part of a Multiverse, Part II

MIT 8.286 The Early Universe, Fall 2013
Instructor: Alan Guth

In this lecture, the professor summarized the standard Big Bang, cosmic inflation, evidence for inflation, inflation and multiverse, nightmare of dark energy. He also talked about the landscape and environmental selection, anthropic arguments, etc.

License: Creative Commons BY-NC-SA

[heruilin]

What a tremendous gift these lectures are. Professor Guth is very patient and respectful of all questions and attempts to answer each one sincerely while gently dispensing with the many misconceptions (many of mine own).

[strangequark]

What a thoughtful listener. When Dr. Guth solicits questions from students, he is so attentive and eager to hear what they need to know. Of course, these are the smartest university students there are, but this cat's got decades of experience. He clearly loves to teach and to help young scientists learn how to think.

[mok]

I never thought i could understand how the universe form unless explained by the genius teaching professor Alan Guth

[allclevernamesgone]

Pretty sweet.  I get to take in a lecture at MIT and not even pay tuition.  I love the internet *hug*

[justiceretrohunter]

So much information on MIT... I wish i was a particle in a quantum state so i can watch them all at once.

[mikep]

What an amazing opportunity to watch and learn from this great teacher and physicist! Thank you Alan!!

[kevinbradbury]

Has anyone noticed how politely Dr Guth listened to Q&A’s at his Public Lectures?

[SevenFootPelican]

How could you be bored by this? This is the most cutting edge stuff that human beings are engaging in as it relates to objective reality. These guys are trying to get to the cutting edge secrets of the universe. The implications these lectures have for our distant future on a cosmic scale cannot be underestimated.

[mathmatters]

Course starts at 1:02:00 1 hour 2 mins into the video.

[squarkino]

When discussing the anthropic argument it is a selection effect not the fact that the universe is done for human kind, but when discussing that Omega is 1 and it is very rare this happens by chance while the inflation can explain it then it is not a selection effect but it is that bis theory is the right one. What I mean that at the end this kind of argument are more than by what we think it is right more then by a scientific demonstration.

[vishalmanchanda]

I am in love with this series of lectures!

[ameremortal]

Thank you so much for making this free.

[realcygnus]

33 views ! wtf? this is of the most superb content on the net!...thanks MIT!...& from a virtually guaranteed future Nobel Laureate mind up there with Lewin, WSU & Stanford's Leonard Susskind CE rec'n they soulda had "piano kitty" speaking instead...jeez mind candy 4 all....1 way 2 help fix the future 4 sure ! 

[eric]

I enjoy listen to your teachings Mr. GUTH. Thank you.

[jonas-byuc]

having access to something like that really makes me happy to live in this century !

[aviramvijh]

The summary was so good for non physicists and mathematicians like me.

[rohitdodu]

In this pocket universe of a larger Youtubian multiverse, how unlikely is the dislike parameter to be zero and what divine selection helped you land here ?

[shirleymason]

I'm not a scientist, my background is computer science, and I think you guys grouse a lot. Even enjoy being unkind. What's not to understand about his lecture? It's actually rather basic if you pay attention. And he's not at all boring (again, if you pay attention). Keep in mind, he's teaching. This is not Comedy Central. And Sean Carroll does give lectures, many here on Utube on a similar level. Even deeper. Get to work!

[ianmathwiz]

1:08:15 As of January 2022, Wikipedia still finds Hubble's Law, Lemaître's Law, and the Hubble-Lemaître Law to all be acceptable names.

[mechtheist]

The Cosmological Redshift is NOT a doppler shift.  Amazing how so few get this correct, most textbooks are wrong about this