jamest wrote:Pebble wrote:As I see it metaphysics is just trying to make sense of the universe based on incomplete evidence.
Stop talking bollocks. Metaphysicists realise that the universe we observe/know is not 'reality'
Correction, this is frequently
asserted, usually as the starting point for the construction of a gigantic assertionist Laputa. The degree of congruence of the observed universe with whatever "actual reality" may be postulated to exist is
unknown. I've never seen any metaphysician provide an actual
answer to this question, and this includes people with far greater credentials in this field than you. For a reason I shall come to in a moment.
jamest wrote:so the point of metaphysics is to comprehend the reality underpinning said observations/knowledge.
Wrong. The point of metaphysics is to determine
what questions to ask with respect to this, as a means of illuminating our understanding of the issues. The methodologies allowing
answers to said questions to be determined, are frequently
external to metaphysics. Indeed, Aristotle himself placed his treatises on logic at the beginning of his works, and thus sought to make those treatises a foundation upon which the later deliberations could be built. It's also interesting to note that Aristotle valued empirical evidence far more than many of the metaphysics fanboys here, but that's a separate question.
jamest wrote:You can't just assume/assert that the physical universe is reality
As opposed to the all too frequently peddled assertion by you and others here, that the opposite is the case?
jamest wrote:and decide that metaphysics is the effort to find a pure physics.
Well before you launch into yet another failed assertionist enterprise, you might want to factor into your thinking, such as it is, the fact that many questions once considered to be purely the remit of metaphysics, are now firmly questions residing within the realm of physics. A particularly exquisite example being the question of whether the universe is infinite in extent or not. After the publication of the first works on general relativity by Albert Einstein, quite a few physicists realised the cosmological implications of treating gravity as curvature of spacetime arising from matter. This led immediately to a demonstration that the large-scale geometry of spacetime would be dependent upon the amount of mass in the universe. Below a critical value, the curvature of spacetime would be hyperbolic, and such a spacetime cannot be closed and bounded. At the exact critical value, the curvature of spacetime would be flat or Euclidean, and again, such a spacetime cannot be closed or bounded. Above the critical value, the curvature of spacetime would be spherical (or, more properly, hyperspherical), and would be closed and bounded by definition as a result. Therefore, answering the question of whether or not the universe is infinite in extent, became nothing more than a search for mass. Of course, in the case of a closed, bounded, hyperspherical topology, other evidence would point to this, such as the arrival on Earth of light from a given object in two different directions simultaneously.
The discrepancy between the observed amount of mass in the universe, and the nature of the observed large-scale geometry of spacetime, is of course what led to the emergence of dark matter theories, to supply the missing mass that would be required to produce the observed large-scale spacetime curvature.
Oh what was that you said about empirical evidence being purportedly "irrelevant" to assess metaphysical claims again?
jamest wrote:What a load of shit!!!!!!!!!
As succinct a description of many of your posts as one could wish for.
jamest wrote: In this respect once there is evidence we are dealing with 'physics' or science.
FFS. I give up.
If only.