geordief

What might it be if it was not in a momentum eigenstate? Any one of the other eigenstates it could be in? Can it be in more than one eigenstate at a time ?

So a particle whose momentum is measured does not undergo a change in momentum as a consequence of the measurement? Or is it rather that a particle whose momentum is measured does not undergo a change in position as a consequence of the measurement.? I feel it should be the latter as the position is unknown both before and after the measurement. And ,if that is right ,the same would apply to a measurement of the position of the particle.That should not change its momentum ,for the same reasons.

Would that apply to the position/momentum of a quantum object? (I hope "quantum object "is a meaningful description of something)

Could I ask you for an example?

You say "usually". Does that mean or imply that some measurements do not change the state of a system?

Are there other features of QM that could be described as essential in the way that it differs from Classical Physics?

Clearly some support if not enough to govern democratically. Ally that to fear of coercion and ostracization then they have for now all the "support" they need. These are the other polls I alluded to https://www.haaretz.com/middle-east-news/palestinians/2023-11-22/ty-article/.premium/three-quarters-of-palestinians-support-hamas-attack-on-october-7-says-new-poll-why/0000018b-f841-d473-affb-f9e9eeef0000?v=1702035272031&lts=1702035306279 I expect many here will already be aware of them

Maybe I am biased /pessimistic but I kind of assume that Hamas has support in the Arab population generally and that that would be reflected in Gaza. Did you see the polls I mentioned above where the PA's support has dropped off a cliff(around 10% compared to a healthy >50% for Hamas)? I think the poll was in the West Bank and possibly Gaza too. I know that Hamas has no democratic mandate but that doesn't mean it can't still be popular. I mean the enemy of my enemy has to be my friend.And Israel I guess is most people's enemy(which is Hamas' ongoing objective of course) Edit:of course I hope that you are right to "doubt it very much"

Sure ,I had in mind a couple of opinion polls that were released a while back that showed a high level of support for Hamas (and very little for PLO) Under normal circumstances I would expect those preferences to be passed down the generations. Of course I cannot know and I don't know what were the age cohorts in the 2 opinion polls either. But I said 50% as an example to show ,as we all probably agree that there was ,and probably still is support in the general population for Hamas above and beyond the actual membership I would much rather there was not but I expect that there is. I also expect ,that when this military operation is concluded that there will remain a high level of support for Hamas even though its expression may be prohibited by law. I have no idea what will happen after Hamas has been defeated militarily I wonder if even the PLO will want to get involved in Gaza.

Just in that (if they are composed of,in the main the indigenous population )they represent that population to the extent that they are a part of it. So ,if 2%(?) of the population are Hamas fighters then they represent the population to a very small extent. But if we suppose that some 50 % of the population approve of Hamas then that body (and Hamas itself) could well be said to be representative to a greater degree. That is what I had in mind when I used the term "representative" I meant it in a way that there were various different strands of representation throughout the population and not that Hamas had any legitimacy(it may have had at the time of the last elections but that legitimacy has imo run its course Even so I understand that (,whether or not they are free to express it without consequence ) it seems that Hamas has a lot more support in the general population than I am happy with. I would be very ,very happy if that was not the case but I fear it may be so.

I have been wondering for a while....are the Hamas fighters all local Palestinians or are they largely foreign fighters? I had always assumed the latter but it is now looking more like they are genuinely representative (and repressive) of the local population (although I assume there must be some foreign fighters amongst them)

Yes that's right.My mistake(hadn't worked out what IRL stood for to be honest -over here that is the acronym for Ireland)

If that action occurs when all the choices have been resolved ,where is the time and space for that to happen? I don't think it does. I think it is the onrushing choices beyond them (in the immediate future) that "force our hand" They physically make the "decision" of choice taking for us and we sit "god like" amidst our mental processes looking down or sideways and approving in retrospect.

Would the frequent observation that children and us all, perhaps) need boundaries to develop be an illustration or consequence of that underlying condition? Again the observation that we need to be open minded but not to the extent that our brains fall out?

It makes sense but I don't think that that would be an engrained attitude amongst people -at least amongst people who appreciate that to see the whole picture you have to see both sides. I suspect that that is what we all learn early on but we choose (oops a choice word to use in a free will thread )to forget it when it becomes inconvenient. Actually ,come to think of it ,the question of (trying to) see things from the other's point of view is probably a far more important question than wondering whether free will exists or determinism rules and ,in this thread's question is there any practical or social consequence to the potential resolving of the issue.

I don't follow. I put the "and vice versa" in to fill things out and because it was obviously necessary. But I don't see what double standard is in there. Can you try and explain "my" idea to me?(I freely admit to being easily confused -especially by anything to do with relativity) (I might have an idea of the double standard you have in mind -is it the one where we criticise others for behaviours that we find ourselves able to justify in ourselves - common or garden hypocrisy?)

I had the idea a few months back that everything was determined (about me) in your frame and everything was free will (about me ) in my frame. And vice versa.

In absolute terms,I agree. We all have choices** but they are all competing against one another and so none of them are "free" until an action is taken. Then they appear to be free as the particular "last standing" choice is the "king of the heap" **if there was only one choice that would presumably be the antithesis of what we might call "free will"

Not quite sure what was in my head when I posted that.Maybe this would be an example of what I had in mind. When you form a close attachment to another person , that (in your ,and in all likelihood in others') minds defines who you are. It is a commonplace to hear said that when such a person is lost then a part of the person is lost too. Again ,Stringjungky gave up smoking some 5 or more years ago and those who try to motivate people like him to quit an addictive habit often (I think) say that you have succeeded in your change of behaviour when you identify in your own mind as a "non-smoker" I quit some 30/40 years ago but I don't meet that criterion and still miss the habit ,especially the offering of a cig to a friend or a stranger. If you give me a clue ,perhaps I could think of a counter-example?

Can we draw a line between our motivations and our identity? Is our identity something that we construct post facto? Is there a difference between how we experience our identity and how we model it (or another person's identity)? Are you still off the smokes?

Are we one person in the first place?(at any one time or otherwise) If we have overlapping areas of identity, then that must muddy the waters.

Mrs Doyle says "ah go on"

Not me.(Just working out what a DV is.) Don't see Swansont getting them a lot. I think Israel needs Net. et als' monkeys off their back but the only reason they can't is likely that the Palestinians prefer them to to more accommodating/sane alternative and so don't give an inch(with the result that the Israelis turn to them in the voting booth)

Sausage rolls?

I got it too. Thought the response was funnier though.(a soupçon of Poe face?)