There are multiple reasons for this. One is that most, if not all, of us were raised in a society(and likely by parents) who buy into the whole mind/body duality thing, of which the continuity of the mind/soul/whatever is a natural bi-product, and old habits are really hard to shake off. It's not that we believe what "we" will be able to experience retirement, it's that it's easier to speak that way because of a lifetime of speaking that way.
You do realize that you just repeated my argument for why most people believe in an afterlife?
Anyway. I am skeptical that most atheists merely speak in conventional terms without believing the underlying ontology.
It would also help me if you would explain to Spidergoat why he is incorrect about the persistent self.
Another reason is that we just don't care. It doesn't really matter whether the matter in my body is the same or not, at the time that I retire the "me" that's there will experience retirement. This would be true if I retired tomorrow or thirty years from now, either way the completely current me won't "live" to see it. So such meanderings of the mind, while occasionally interesting, are of no consequence to us.
I don't think this is the case for most atheists/humanists. At least it is not in my experience. My family, in fact most of the people I know are atheists, and they are not merely using conventional language. This could be a fluke, but I doubt it. When I have raised the issue in other forums, I generally get Spidergoats response from atheists, or a response similar to his or hers. They tend to use nominalism to defend the idea that they will in fact experience things and they are not being copied. And no other atheists seem to manifest to disagree with them.
The great thing is here in this thread we seem to have a mixed group and I am very curious to see how they will interact on the issue.
Just to be clear: I do acknowledge that atheists can be and certainly some are consistent as physicalists just as you are.
Has anyone here denied this fact?
Yes, Spidergoat, clearly. Potentially Sarkus. He is certainly presenting a case for continuity, not that I think it works, nor does he seem to be convinced himself. I am not sure about gmiliam and a number of others.
What I experienced when I read a number of other responses, for example from Fraggle or Phlogistan, was that they came up with their own wording or seemed to have misread the OP. I fed back what I hoped was a very clear rewording and I am interested in seeing what their responses are. They may have agreed with a consistent physicalist position, but I can't be sure yet.
A couple of people wrotethat their personalities change, and that they admit this, so they are atheists who do not fit my description. That seems to be a very odd misread of the OP. A physicalist can be consistent when they consider identity to last over time when the object in question has some insubstantial changes. A rock that gets painted blue is still the same rock. I do not know what they meant by personality changes, but it is not at all clear that they were acknowledging that the entire physical object is no longer the same, but a kind of gradually made copy - an analogy could be petrified wood, where there is no longer any of the original wood, which has been replaced by clay or sandstone or whatever it is.
I found these responses odd and Fraggles to be almost completely missing the mark, so I am still not sure.
Have we all admitted to accepting it? The answer to both of these questions is "yes".
Well, no.
Now for an important question, out of the atheists and materialists(they are not, strictly speaking, the same thing) who've posted here, how many have said that it doesn't really matter to them?
Not sure. It seems you have tallied.
As far as atheists not being the same thing as materialists or physicalists. Yes, of course. But that's not the issue. A non-physicalist atheist can believe in something like a soul that persists through a life time without contradiction.
IOW if an atheist believe in a persistent self they believe in something like a soul. For physicalists this creates a problem. For non-physicalists this may not cause a problem, but it undercuts criticism of theists as dualists or supernaturalists, for example.