A typical view in modern science is that consciousness somehow arises from physical interactions and that free "will" is an illusion.
I'd like to point out some generally overlooked problems with such a perspective (not that many better alternatives are out there):
1) If the universe has taken eons of time, since the (assumed) Big Bang to reach this moment in which I can lift my hand, then it would be just as valid to say that the universe was predetermined since (a vague) "beginning" of time to allow me to raise my hand.
So the same belief in predestination that caused Einstein to say that people are as fixed in their orbits as stars, is also the same predestination that says the stars are as subject to conscious desires as the motion of ones own body.
(A more realistic perspective might allow conscious will to operate within physical confines and subject to feedback by physical effects - for example, my conscious will can lift my hand, but not with the same physical effect if my hand is asleep or carrying a 50 lb. weight)
2) The influence of conscious will also appears required by science, if there is to be some value or merit to science.
As an example, let's say hypothetically that we've discovered all the laws of physics and that the "clockwork" view of the universe is correct and that we've completed sampling the physical states of most everything in the universe and we have a machine that can effectively predict the future that will arise from the currently observed state of the universe.
Now someone 'runs the program' and, let's say they discover they're going to win millions in a lottery a couple years from now, but die in a car accident shortly afterwards.
Obviously a protest to such a fate might occur and the individual may decide not to drive after winning the lottery, ah, but if we've truly nailed down the laws of physics and correctly sampled the state of all influencial components of the universe, then the person could neither win the lottery sooner, nor avoid dying the subsequent car accident.
So is such a clockwork view of the universe particularly useful (assuming such is even possible)? No. You're already going to inevitably experience events anyway. There would similarly be no reason not to build such a machine as whether or not it was constructed would be fated under such a physical system.
In other words, there's utility to such a universal model - no choices from a selection of events with a diverse range of subjective values is available.
If we're to assume the physical sciences provide a benefit and are empowering then the implicit assumption must exist that knowledge gained by such a system of science instead provides results in the form "If you choose to do A then X will result. If you choose to do B then Y will result and if you choose something else, then something else will likely result", or similarly such a system of science should allow the computation of how to achieve a desired result, so in that case we desire to create Z and then via. science we determine that action C must be taken.
There are also many mechanisms by which conscious will can influence physical systems beyond an ability for physical measurement to predict. Claims to the contrary have remained invalid. One of the most problematic elements to any argument for pure materialism is that the person making the argument is simply arguing with themself in their own brain.
There is no immediate manner to distinguish between subjective and objective views as there is no separate "objective channel" by which people see the universe and all experiences are filtered through a single conscious (and inherently subjective) window, so from that perspective materialism could be seen as quite accurate in that there only needs to exist a single viewpoint and material and non-material views are equally verifiable (it's just a matter of semantics).
If we add any artificial separations beyond this, then in order to do this, we need information to distinguish what processes are mental versus physical (or maybe we can make "random" assignments, if that is possible) - but then it once again appears rather arbitrary in selecting which subjective perceptions are actually objective.
Notice that relativity inherently contains a problem with making "local observations". The only information available at some observation point in spacetime is that which reaches you at lightspeed. Due to the fact that you can't move faster than lightspeed, you're forever stuck seeing only what's "here" and not what's actually "out there" - the specific path through spacetime of even a single photon is unpredictable because physical observations are effectively left waiting to collide with an unseen photon. The same goes for quantum mechanics in that only statistical distributions are determined and no physical certainty in the results is allowed.
Consider this experiment:
We have a detector that (we initially assume) can distinguish between 2 wavelengths of photons (in reality, single photons do not contain wavelength information, but let's find out why).
Let's assume we place this detector in front of a light source and proceed to detect 10 class A photons (versus the alternate detectable class B).
Now as long as we never question the validity of an experience or memory/knowledge etc., then there is never uncertainty and things happened precisely as we believe/think they did without the possibility of anything else having happened. This is certain knowledge and likely as tangibly real and scientific as you could possibly get - it's also ironically the extreme of subjectivity.
But all the additional context in the above experiment regarding detectors, wavelengths, emittors (and implicitly space itself) is not immediately verified in an objective sense by the existance of a memory of 10 "class A" experiences.
For example, how do we know that our detector is working as believed? The light source could have emitted both A and B class events, but our detector only received the A class events? In order to know what the detector is (or what properties the detector possesses) we need to characterize its response, so might proceed to attempt to calibrate it using some (once again) believed (truly "correct") uniform source of A and B events.
How do we locate such a source? We also need a detector capable of uniformly measuring such events in order to verify such uniformity. Let's just quickly say we believe there exists such a standard and we desire to use it to verify the operation of our detector.
To get down to the bare nuts and bolts, even assuming we have such a standard believed to be accurate, we still need to interact with it in space and this requires additional photons to detect and align the emitter and detector in space (with additional questions regarding confidence involved) and these extend beyond the original 10 measured class A events that provide additional statistical qualifications to their measurements.
In other words, in order to know anything beyond the existance of the initial 10 identical events, we need the information provided by additional events to become a context of interpretation and not be considered part of the experiment itself - but which events are not influencial to the results of the experiment? If we wanted such a decision to not be subjective, we'd once again need another (third) source of information to tell us which experiement was the reference and which was the result - of the course the same problem arises in deciding which of these, now 3, classes of information to use as the deciding factor in determining which of the other two was control versus result and this continues on with uncertainty, ad infinitum, because uncertainty or randomness and indeterminism is irreducible once it's been added to a system.
In the end, the most tangible scientific and certain view possible is ironically not objective, but the subjective first person view that includes whatever beliefs and assumptions are made regarding the context in which all this information is interpreted.
Though there may be something more certain than ones own existance, I surely can't think of a more solid platform to build physical science (so instead of "discovering" after the fact in quantum mechanics that the observer is a part of the system, this should instead be a premise upon which physics is built) and, as shown above, in order for science to possess and merit or value to its construction, it inherently needs to also assume that conscious will and values are the forces that mold and shape it for a purpose (science is physical artistic creation on steroids and mathematician are mental sculptors- they're processes of both discovery and creation - fundamental reality appears to be rooted in irreducible logical structures which are consciously manipulateable, but still subject to logical limits - if you deny the limitations, then "everything exists" which ironically appears as influence and distinguishable as nothing specific at all - if you remain within the limits, then your creations are timeless and adhere to an order and exist as specific "things", for better or worse).


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