Indefinite Causal Order in a Quantum Switch (Goswami, Giarmatzi, Kewming, Costa, Branciard, Romero, White; APS; Aug 2018)
(also ... the Casimir effect, virtual particle pairs, quantum fluctuations, radioactive decay, spacetime foam/turbulence, the "pressure" of vacuum energy, Fomin's quantum cosmogenesis (successors), Krauss' relativistic quantum fields, ...) — jorndoe
These are all micro effects -
according to everything we know, all macro effects have causes. The origin of the universe is a macro question - huge amounts of matter.
I suspect all micro effects have causes too - its just our physics is not unto the job of identifying them.
I am not familiar with everything you listed, but: the Casimir effect has an alternative explanation that does not involve quantum fluctuations. Virtual particles / quantum fluctuations are caused by fluctuations of the underlying field. Radioactive decay is caused by activity within the nucleus as I already explained. Suspect the same sort of thing applies to the other phenomena you listed.
No. (FYI, the link is the earliest reference in the literature I know of.) — jorndoe
Finite and unbounded is plainly impossible. I'm not even going to waste my time reading that link.
I linked to the Stanford article on supertasks, which clearly explains what they are and how they are not logically impossible. In the face of that your insistence is fractious. — Banno
That Stanford article is wrong. I will explain the problem fully in a separate post later.
Well, no. "Every action has a cause" is not one of Newton's laws, nor is it implied by them. — Banno
Both Newton's 2nd and 3rd law describe matter (=cause) acting upon matter (=effect). So Newton's laws are the embodiment of causality.
Neither. This is a loaded question. — Banno
You seem to have disregarded the LEM! - not acceptable in my book. 'The Big Bang has a cause' is either true or false not both true and false at the same time.
This is a description of your personal psychological state. — Banno
And yours. And all of ours. We all believe in causality.
In my thesis, I interpret the baseline nothingness as the normal state of Ontology (BEING), which is also the eternal state of Logos, the Enformer. An act of Creation (Enformation, Causation) causes the neutral state to transition into positive-but-transitory existence (real, actual, Energy), which soon dissipates into (unreal, potential, Entropy). I go further to imagine fast oscillations (lightspeed) as Energy, and slow oscillations as Matter — Gnomon
'Nothing' is an interesting concept:
Space is expanding - 'nothing' can't expand - so space must be 'something' (substantivalism) rather than nothing (relationism). I imagine spacetime maybe like some sort of finite block, maybe surrounded by, and expanding into a wider, timeless, universe. That wider universe is also finite and surrounded by 'nothingness'.
I imagine 'nothingness' as no space, no time, no dimensions - just absolute nothing. It cannot be said to be infinite because it has no dimensions and does not exist.
I am unsure if any matter/energy was actually created - the conservation of energy seems very well respected by nature. It seems more like the container of spacetime has a start (the Big Bang / start of time), so that container was somehow created / initiated. But some or all of the matter/energy must of come from outside spacetime - a seed of matter/energy must at least be planted within spacetime to generate the rest of the matter/energy. Or otherwise, all the matter/energy is sourced externally to spacetime.
The Copernican principle, otoh, is something we want to hold on to if we can. — Enai De A Lukal
Fine tuning does not run contrary to the Copernican principle - it says the whole universe (or even whole multiverse if you prefer) was tuned for life and is packed full of life - all those exoplanets we have discovered.
We know from Godel and related work that any system advanced enough to explain arithmetic must either be incomplete or inconsistent. — Banno
Self-referential statements are pathological entities that should not be allowed anywhere near maths or logic. Godel was wrong. I might do a separate post to discuss this at some point later.
We know you believe time must have a start, that you want time to have had a start. The problem is of course that the evidence and logic of the matter doesn't tell us firmly either way: again, hence scientific models of both varieties remaining viable. — Enai De A Lukal
I've already proved time has a start to you! Did you not read my reply? Once again:
- The past is either a finite number of days long, or greater than all finite number of days long
- Nothing can be greater than all finite numbers; they go on forever
- So time has a start
Please kindly read and properly consider the above proof.
Supertasks or infinite sequences may strike you as conceptually difficult to imagine or grasp, but if they do not entail a contradiction, then they are not logically impossible. If you claim that something is logically impossible, stating why it is implausible or weird is not sufficient: show us where it involves a contradiction. — Enai De A Lukal
Supertasks are impossible. I'll do a separate post to discuss this in the coming weeks.
Your hands are full at the moment. I don't want to distract you from better discussions. Au revoir. — TheMadFool
Mad Fool: I like to hear from you too!
No, I'm not talking about the mere gathering of other people's thoughts. I'm talking about the judgement of them. How do you know they are wrong? Even when obviously intelligent and knowledgeable people, basically the vast majority of the mathematics community, have told you you're wrong, you still consider yourself to be right, so their conclusions, arguments and demonstrations have had no effect on you whatsoever. — Isaac
1) Mathematics defines points to have zero length.
2) How many points are there on a line segment length one?
3) Line length / point length = 1 / 0 = UNDEFINED.
4) That can’t be correct. Euclid, Cantor and co MUST all have it wrong.
I will explain the implications of the above result in upcoming posts.
I feel we should concentrate on the God issue with this thread.
I have no objection to you doing this, of course, you can do what you like, but I am a) very interested in why you would then consult the very community you've already decided you will reject the wisdom of the moment it doesn't suit, and b) slightly annoyed that you're being so evasive about this, which makes me suspect you're motives are hidden and disingenuous. — Isaac
a) I don't reject others wisdom. I consider their points carefully and adjust my position if required.
b) I can't explain all my ideas in one post. Please bear with me - I will cover it all eventually.
Can you justify this without personal incredulity? Otherwise you may as well cut out the middleman and say: "I personally can't conceive of a universe without an intelligent creator, therefore the intelligent creator exists, and we call him God". This actually has the benefit of having only one fallacy. — Kenosha Kid
As I already pointed out to you, eternal inflation theory mandates a first cause.
As to why eternal inflation theory is wrong, I will have to do a separate post on it in the coming weeks; don't want to crowd this already busy thread with other loosely related issues.
Yes, and it ain't how Bayes intended. Utter nonsense put forward by Stephen Unwin, creationisms most willing idiot. It's an argument ab rectum. — Kenosha Kid
Just because you don't understand something, does not mean it's wrong.
Aside from pulling these probabilities out of thin air, the way you've added them together like this makes no sense at all. — Michael
I'll explain my method:
1) Assume we have a trial and someone is accused of murder.
2) Before hearing any evidence, we assign a neutral 50% guilty, 50% innocent, probability outcome.
3) The first piece of evidence is finger prints on the knife.
4) We assess that [3], on it's own, means it is 75% likely he is guilty.
5) That gives 50% guilty + 50% innocent X 75% = 87.5% chance he is guilty after considering one piece of evidence.
6) The second piece of evidence is blood on his cloths
7) We assess that [6], on it's own, means it is 50% likely he is guilty.
8) That gives 87.5% guilty + 12.5% innocent X 50% = 93.75% chance he is guilty after considering two pieces of evidence.
9) You can obviously continue adding as many separate, non-overlapping, pieces of evidence to get a better estimate.
I can't quite work out how to extend this method to take into account negative evidence. Any ideas?