Tamminen wrote: ↑July 19th, 2018, 3:34 amI am here and now.
My point was that I couldn't think of anything (with a location) that wasn't at its own here and now. The terms seem to be a reference to information already known. Without that information, no new information is conveyed. So you say you are 'here', but I am no more informed of your location, and you say you are posting this entry 'now', which doesn't tell me when it was posted were it not for the date the site tacks onto the post. No clock has 'now' engraved on it rather than hands. Such a clock would indeed be more accurate than most, but would convey as much useful information as a GPS unit that always says only 'here'.
Yesterday I had yesterday's here and now.
OK, you see that 'now' is not a special time, and you mention other people, meaning 'here' is also not a privileged place. That sort of drives out the solipsistic definition.
But the stone I am looking at has no presence of its own either in the sense of 'here' or in the sense of 'now'. This makes us different from stones and clouds.
You have your presence but your pen has only your presence. Just to clarify what I mean by precence.
Here we differ. The stone/pen is very much present at its location I would think. If you misplace your wireless phone and hit the locator button and it is programmed to say "I am here!", you don't instinctively look in your pocket (which is your 'here'), but you look for the 'here' of the place from where the sound came. Yes, it is imitating a human by using those words, and it isn't one. But the thing is indeed located at its own 'here' and not the 'here' of any 'conscious organism'.
A cloud is at location (x,y,z,t)
4D coordinates, which is a point in spacetime. A cloud (or rock) might indeed be present at that point (event), but it is also at different coordinates, as are you (depending on your definition of 'you' which may or may not be a 4D model for one thing). All these things are worldlines, and one given state of a thing is reasonably represented by (x,y,z,t), but a state of a thing is not the whole thing, just a cross section of it.
Halc wrote:In that model, you are a worldline, and a worldline does not experience a here and now.
I am here and now.
No, in the 4D model, only a given state is that state's here and now. If that state defines you, then you cannot make reference to yourself yesterday as that state is somebody else. If the yesterday state is also you and it experiences a different here and now, then there is no objective here and now that you experience since there are clearly different ones. This is not an invalid view, but probably not what you are pushing here.
You are probably pushing the 3D model around which the language is anchored, but that was supposedly not the concept you were discussing. Perhaps you think that the 4D model is incorrect. That's fine. It certainly doesn't much fit in with some of the assertions you are making, and science cannot falsify the 3D model.
Tamminen wrote: ↑July 19th, 2018, 7:17 amHalc wrote: ↑July 18th, 2018, 4:42 pm
...a worldline does not experience a here and now.
Except for a conscious worldline, which is a succession of presences, also called experiential contents.
The 4D worldline model has an ordering of events along the worldline. A 'succession' I suppose is a valid way of putting it. A worldline cannot consist of a series of ambiguously ordered events, or so physics says, but so semiotics doesn't say.
This is what makes human history different from cosmic history: we speak of projects and intentions rather than brain processes. "Alea iacta est" refers to a decisive "here and now" of Caesar.
??? Of what relevance is this to something's worldline? A pen also is a worldline with unambiguously ordered events, even if it may not have projects and intentions.
Tamminen wrote: ↑July 19th, 2018, 9:14 am
What is the "now" of a stone? It can only be defined in relation to an observer, and if that observer is far from the stone, the "now" of the stone cannot be defined, because it depends on the speed of the observer in relation to the stone, and if there is no observer, there is only the worldline of the stone without a "now" and without a "here".
That's all the human has as well. Just the worldline, with a completely undefined 'now' in relation to a sufficiently distant reference point, be there an observer there or not. Besides, I cannot observe anything 'now'. I can only observe some past state of it, and that observed past state is a fixed event from said distant reference point, regardless of the reference frame used at that point.
But if the stone were conscious, it would have its own succession of presences.
It may not be aware, but it still has a succession of events, some of which need a reaction now, dependent on measurement, yes, but not dependent on observation.
I think a semiotic thing is needed to designate a group of events as a worldline. I don't think the worldline view has any real objective meaning outside language. For example, what exactly connects Halc making this post to the Halc of 1980? Answer seems to be 'nothing', except for language convention. Perhaps you assert otherwise.
All this means that the identity hypothesis is false, and so is property dualism, because matter without presence cannot generate presences. We must turn the picture upside down.
What is the identity hypothesis? Forgive my ignorance. A quick search seems to be the brain=mind (monistic) view, but I don't see the term regularly used to be sure of that.
Does your model of identity hold up to the usual gamut of assaults? What is your model?