1. Can you please give me a link to the original source of the "10 to the 53", so that I can see what's meant with this number and how it's calculated.Quote from jem:
1. weinberg gave us the 10 to the 53. Its posted here on et dozens of times.
2. Penrose on video argues the multiverse idea is not enough to explain the fine tuning. Could you provide links to what you say Penrose is saying.
3. regarding the history of string theory and the multiverse conjecture...
we discussed this on ET from right about the time Susskind released his book.
I argued that Susskind was saying our universe appeared designed and Stu and typical ET atheist clowns argued I was wrong.
2. Penrose says so in his recent book, and also in the very video - just listen to it. He's referring to the entropy curve and to string theory solutions, not to what you mean with fine tuning and the multiverse.
String theory solutions are _not_ the multiverse, at least not in the sense of differently "tuned" universes. String theory solutions generate vastly different universes with different geometry, and it's not even clear if every solution is a really existent universe, although Penrose believes that.
3. I can't comment on Susskind as I do not know his book.
Religious people tend to discuss by quoting "authorities", just as they quote the bible. But science works differently. Only theories and observations matter in science. It's certainly possible that some famous scientist says "the universe is fine tuned", but without knowing what he means and what observation he refers to, this is irrelevant. Understand his theory. Quotes can't replace arguments.
Only the Bible has many accurate predictions;