Belinda wrote:Prothero wrote:
Some seem to speculate independent reality is frozen, eternal and timeless or completely beyond access and therefore can neither be experienced nor known. I think the rather amazing efficacy of science and the senses in utilitarian pragmatic terms is sufficient proof of our ability to encounter and manipulate an external independent reality and to "know" a lot of about it. Of course my definition of "knowledge" is a pragmatic one, not an idealistic one.
Our ability so far to encounter and manipulate an independent external reality is cumulative despite paradigm shifts and moral disability. If one accepts this then one necessarily accepts also that we approach more closely the independent, frozen, and timeless reality. Probably as we are creatures of time we can never attain the latter.
There is a wide spectrum of opinion about how much or how little we can know about “reality” which is independent of our perceptions of it. Some say we can not even know there is an independent reality (absolute idealism). Some say we can not even know there are other minds (solipsism or BIV). Then there are all the various degrees of realism from the naive or direct realists who maintain we experience reality as it is (presumably without us) to the Kantian type of realists who do not deny an reality independent of us but excludes the possibility of “knowing” it (the noumena). All we have access to in Kant is the phenomena, our sense perceptions organized through our categories of thought (time,space and causality) categories which we impose on nature.
I fall pretty far on the spectrum of we have useful knowledge of and direct interaction with an independent reality. We are part of the world, we have arisen from the world, all normal sense perception begins as a causal chain or interaction with the world. Unicorns are a possibility but I have never seen one, have no empirical evidence of one's existence and therefore have little reason to believe in the actuality of unicorns. Electrons are a conception of science, I have never seen one or directly experienced one, but there is considerable empirical evidence of an real (actual) entity which matches the description, so I believe in the actuality of an “electron”.
This is not to say we have “direct” knowledge of the world as it is without us, or complete knowledge of the world, or that current theories of science are our final understanding of nature or that we will ever have complete as opposed to partial, incomplete and in some respects unsatisfactory “knowledge” of nature. We will never know what is like to “be a bat”, “be a tiger” or even be another “human” or reconstruct the presentational immediacy of historical events.. Nonetheless we have little reason to doubt the existence of a reality independent of us or that the combination of experience, reason and science tell us important and useful “information” about that reality.
Although I referred to the notion that reality is sometimes thought timeless, eternal and changeless, the reality that we live in, arise from and experience is anything but. Our reality is temporal, flux, change, impermanence, fleeting, a world of complex interacting, societies, organisms and processes. Reality is process for us closer to Whitehead’s Process and Reality than to an iron, frozen or block universe. There may be a realm, layer or level of reality which is eternal and timeless but it is not the one we directly experience or interact with.