astro 220: galaxies and cosmology“our aesthetic judgment therefore comes down to what we find more...

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Astro 220: Galaxies and cosmology Nov 10 2010 Wednesday, November 10, 2010

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Page 1: Astro 220: Galaxies and cosmology“Our aesthetic judgment therefore comes down to what we find more wasteful: many worlds or many words. Perhaps we will gradually get more used to

Astro 220:Galaxies and cosmology

Nov 10 2010

Wednesday, November 10, 2010

Page 2: Astro 220: Galaxies and cosmology“Our aesthetic judgment therefore comes down to what we find more wasteful: many worlds or many words. Perhaps we will gradually get more used to

Wednesday, November 10, 2010

Page 3: Astro 220: Galaxies and cosmology“Our aesthetic judgment therefore comes down to what we find more wasteful: many worlds or many words. Perhaps we will gradually get more used to

Weak Anthropic Principle:

“The observed values of all physical and cosmological quantities are not equallyprobable but they take on values restricted by the requirement that there existsites where carbon-based life can evolve and by the requirement that theUniverse be old enough for it to have already done so.’’

Wednesday, November 10, 2010

Page 4: Astro 220: Galaxies and cosmology“Our aesthetic judgment therefore comes down to what we find more wasteful: many worlds or many words. Perhaps we will gradually get more used to

Strong Anthropic Principle:

“The universe must have those properties which allow life to develop within itat some stage in its history.”

Wednesday, November 10, 2010

Page 5: Astro 220: Galaxies and cosmology“Our aesthetic judgment therefore comes down to what we find more wasteful: many worlds or many words. Perhaps we will gradually get more used to

Wednesday, November 10, 2010

Page 6: Astro 220: Galaxies and cosmology“Our aesthetic judgment therefore comes down to what we find more wasteful: many worlds or many words. Perhaps we will gradually get more used to

Wednesday, November 10, 2010

Page 7: Astro 220: Galaxies and cosmology“Our aesthetic judgment therefore comes down to what we find more wasteful: many worlds or many words. Perhaps we will gradually get more used to

“Our aesthetic judgment therefore comes down towhat we find more wasteful: many worlds or manywords. Perhaps we will gradually get more used tothe weird ways of our cosmos, and even find itsstrangeness to be part of its charm.” - Max Tegmark

Wednesday, November 10, 2010

Page 8: Astro 220: Galaxies and cosmology“Our aesthetic judgment therefore comes down to what we find more wasteful: many worlds or many words. Perhaps we will gradually get more used to

Wednesday, November 10, 2010

Page 9: Astro 220: Galaxies and cosmology“Our aesthetic judgment therefore comes down to what we find more wasteful: many worlds or many words. Perhaps we will gradually get more used to

Wednesday, November 10, 2010

Page 10: Astro 220: Galaxies and cosmology“Our aesthetic judgment therefore comes down to what we find more wasteful: many worlds or many words. Perhaps we will gradually get more used to

Wednesday, November 10, 2010

Page 11: Astro 220: Galaxies and cosmology“Our aesthetic judgment therefore comes down to what we find more wasteful: many worlds or many words. Perhaps we will gradually get more used to

Wednesday, November 10, 2010

Page 12: Astro 220: Galaxies and cosmology“Our aesthetic judgment therefore comes down to what we find more wasteful: many worlds or many words. Perhaps we will gradually get more used to

Wednesday, November 10, 2010

Page 13: Astro 220: Galaxies and cosmology“Our aesthetic judgment therefore comes down to what we find more wasteful: many worlds or many words. Perhaps we will gradually get more used to

Wednesday, November 10, 2010

Page 14: Astro 220: Galaxies and cosmology“Our aesthetic judgment therefore comes down to what we find more wasteful: many worlds or many words. Perhaps we will gradually get more used to

Wednesday, November 10, 2010

Page 15: Astro 220: Galaxies and cosmology“Our aesthetic judgment therefore comes down to what we find more wasteful: many worlds or many words. Perhaps we will gradually get more used to

Wednesday, November 10, 2010

Page 16: Astro 220: Galaxies and cosmology“Our aesthetic judgment therefore comes down to what we find more wasteful: many worlds or many words. Perhaps we will gradually get more used to

Wednesday, November 10, 2010