- Nov 4, 2013
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Wigners Friend to me makes so much sense even on a macro scale that fundemental reality is somehow subjective. Objective reality can be an agreed upon measure but only when we are in the same observational space. But we know there are multiple realities when we are not. Other creatures experience different observational realities as well. They are not built the same as ourselves so see the world differently. So who is right, whose reality is the one true reality.Watching this thread I observe a few things.
1/ that kylies statement is indicative of one of the big misunderstandings of non scientists.
The statement should read that maths is the language used to describe and model OBSERVATIONS of the universe, which are not the same as the universe. The nett sum of all observations of the universe, or model of them are not the same entity as the universe. Materialists always confuse the two.
2/ you ( rightly) raised the physical demonstration Of the Wigner’s friend paradox, but the materialists are not getting it . The experimental demonstration of what was long presumed from Copenhagen , that Observations are NOT objective Is far reaching and profound since the materialist assumptiom is of an objective universe.
3/ Materialist scientists may not “ like” philosophy, but they are stuck with it. Like error bounds: “ knowing the limits of what you can know “ is a qualifier on all observations and models. All scientists are engaging in philosophy whether they like it or are even aware of it.
4/ Occams razor contains a subjective element As to what is simple .
In models minimising entropy is a “simple concept” and commonly used , but which can yield more complex maths. So is simple an objective concept, or in the eye of the beholder?
That implies that what we observe is but a surface reflection of something deeper and it will depend on how we are built as to how we navigate that surface reflection.
What I found interesting about Wheelers ideas that we live in a Participatory Universe was that knowledge created reality. As we update our knowledge our reality changes in a way. In other words we will always be creating a new reality and doing away with old ones. To some extent the scientists creates that reality by choosing what they want to measure.
But the facinating thing about Wheelers interpretation is that our choices and measures can actually change the past. What we thought was the Universes beginning has changed and will always be changing. So in some ways we are creating the Universe by what we measure and the knowledge we gain from that.
The eminent Henry Stapp said this brings reality back to epistemics rather than the material ontology which points to knowledge being a fundemental component of reality.
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