/sci/ - Science & Math

honestly, why do mods allow these stupid threads. i mean they were funny like the first 109283 times ever since the dawn of time, but come on. off topic. how is this not off topic.

>he thinks most scientists from all around the world engage in conspiracies with one another to cover up real science and instead promote fictitious science
it's amazing how many people on this board resort to this, and no, i don't mean just climate change, other examples are relativity, space, the thread where the guy says giants existed, aliens, you name it. reminder that if your argument relies on "science is a conspiracy/hoax" then you clearly don't have the first concept of how scientists do their work

>>10149971

>bubble universes

this thread is garbage. can we have an actual response here?

there are a few different kinds of "multiverse"

1) the many-worlds interpretation of quantum mechanics implies that there is a constant "branching" of alternative histories whenever a quantum system in superposition is measured or undergoes decoherence by interaction with a measurement device or its environment. this just means that there are many "parallel universes" being spawned every moment, but not ones you could possibly travel to. it also means that if you e.g. look at a double-slit experiment, then one could interpret the interference pattern generated as due to the interference of two coherent universes, one where the particle(s) go through one slit and another where the particle(s) go the the other

2) there are other "universes" that have different physics laws or number of dimensions or physical constants, and they're just far away. so they actually are located in our universe, in some sense, because they are N many miles away from us, where N is a very large number. they're separated from us by either regions where the inflationary field is still going (chaotic inflation) or by "domain walls" (as in string theory).

3) mathematically, there are parallel universes that you could not travel to; they're not N many miles away, but they all happen in some abstract way because why not, i donno, but they all have different constants of nature due to the string theory vacuum compacting on different calabi yau manifolds, and then we magically invoke the anthropic principle to say "well we live in a universe where the laws and constants are conducive to life"

4) baby universes. nobody knows what happens at general relativity singularities; some people say "oh, well, the mass there goes into a baby universe" which helps to resolve the black hole information paradox

(cont'd)