1st guy: The fundamental laws of physics are CPT invariant.
But we know that we need to handle the past differently than the future and
Bayesian inference proves this too.
2nd guy: But why is the future so different from the past?
Well, I can explain that if I assume initial conditions with low entropy.
But why would the initial state have low entropy?
Wait, I can explain that with some cosmological mumbo-jumbo.
1st guy: This just shows how stupid that 2nd guy is. We know that entropy always increases. This is a fact.
Therefore it follows that the entropy was lower at the beginning of the universe and all that mumbo-jumbo is not needed and just crazy.
3rd guy: Hey 1st guy - have you never heard of Loschmidt?
1st guy: Loschmidt's paradox only arises once someone adds the assumption that reconstructions of the entropy in the past are made by the same methods as predictions for the future.
3rd guy: I happen to have Mr. Loschmidt here, let's ask him about that ...
This is the nice and clean version of that dispute. Reality was of course a bit more ugly ... and I made up the ending.
- thank you Ben!
- Marx brothers in Paris
- decoherent and incoherent
- is a fake economist still an economist?
- protect and defend
- liveblogging from inside The Matrix
- what amendment are you talking about?
- that thing than which there is no greater
- loathe to violate elegant laws of physics that He...
- Keynes vs Keynes
- linked in again
- show some dignity!
- recently, somewhere on the internet
- two questions
- ▼ January (14)
- ► 2012 (104)
- ► 2011 (121)
- ► 2010 (91)