BaruchBeing a bit more technical ...Mon Apr 9, 2012 20:118.104.22.168Cosmic Inflation hypothesis (you are right, not a theory) ... can be applied to a single universe, and originally was back in the 1980s. Basically there is a law against exceeding the speed of light, with one exception. Namely if space-time itself is expanding ... as it seems to be doing. In that sense, the expansion can be faster than the speed of light (something which helps cosmologists explain why the universe is so uniform rather than much more bunched up) ... kind of like stretching out a wrinkled carpet with a powerful vacuum cleaner.
Since the mid-80s though, multiverse theory has become popular (having originally been hypothesized as a way of explaining quantum mechanics in around 1960). From that in the mid 2000s in particular, has come very specific proposals as to how a multiverse can happen by spalling off smaller universes each of which is expanding. In the last 10 years then, the second generation of Cosmic Inflation hypothesis has of course included this newer hypothesis ... not just to a multiverse but to the way in which the individual universes are tied to each other in causality.
Cosmology is an even more dismal science than economics ... because one is even less able to do controlled experiments with a universe or universes than one is able to do with a large human economy. Technically, all of cosmology and most of economics, are hypothetical rather than scientific.
- Inflationary theory clarym29, Wed Apr 4 11:59One universe giving birth to others is called the Inflationary Theory by astrophysicists. I think Kaku was the guy I first heard it from. I makes sense to me. Don't know why it is called a theory... more
- Being a bit more technical ... Baruch, Mon Apr 9 20:11
- Economics clarym29, Mon Apr 9 20:33is indeed a dismal science. Cosmology may be more dismal, but it does not effect as many people. And some of those economic effects are indeed, dismal.