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elcaro

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- TL;DR Summary
- Video lecture by Paul Steinhard, one of cofounders of the theory of cosmological inflation, who now works on an alternative cosmological model, namely cycling universe. In this lecture he compares a slow contracting cosmological model to an inflationary model, and discusses the effects this has on the overall flatness of the universe.

### Paul Steinhardt: Time to Take the ‘Big Bang’ out of the Big Bang Theory?

Paul Steinhard, who co-founded inflationary cosmology, is working on alternatives for inflation in the form of a cyclic, bouncing universe model. In this lecture he compares his model with the inflationary model, and argues that a slow contracting universe would better explain the flatness of the universe as inflation can.

What do you think of a cyclic model versus inflationary model, has a cyclic universe more explenatory power and does it fit better with the cosmological data as inflation?

For some more background on this cyclic cosmological model, I add some more videos on this and a scietific paper:

### Paul Steinhardt and the New Big Bounce Cosmology

### Paul Steinhardt: Introduction to Bouncing Cosmology

Link to the paper:

### A Cyclic Model of the Universe

PS. I am not an advocate for a cyclic universe (or any other) model, and I guess ultimately precission meausurements can decide what model best fits the data. As for any scientific theory.

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