Your posting assumes, Nyan Thousand, that anyone has been able to gather all information on a coin toss and accurately, with 100% certainty, always predict how the coin is going to fall.
And I can find no evidence of that. Maybe someone with access to supercomputers and scientific grade equipment has done it, but I can't seem to find any mention of it.
On the other hand, I can find plenty of information about the difficulties involved in knowing the position and motion of a particle at the same time, lots of information about quantum effects, and other such things that are non-deterministic.
So your point about determinism and free will fails to hold any truth to it, since the thoughts that led up to it are not provable.
Yes, I am assuming. Allow me to indulge you in a thought experiment. First off, I see no reason why we can't predict with 100% certainty how a coin would fall, assuming we know absolutely everything about how it's going to work out. Let's take another example. We know how 1+1 will always equal to, right? It's always two, no matter how you look at it. 1+1=2 has been proven to hold true forever, assuming the things that make it true stay that way of course (somebody might change the fundamental values of one and two, for example)
Let's abstracize a bit: If you go to the roof of your house and drop a ball, it will always fall down, due to gravity. We know that. Because we know that little bit about gravity, you can always say, "If I drop this ball, it will fall." right? This is, of course, excluding other factors that might make it not fall.
One last example: On a projectile motion problem in a physics exam, you are asked to find the ymax of a certain projectile. You can get this, if the relevant data has been given to you, right? Assuming that gravity, Vo and theta are the only things that actually matter in the universe (i.e., no drag, no nothing motherfucker), given those values, you can always say that ymax=whatever.
Let's go back to our coin toss example. Right now, if you make a coin toss, you can only conclude that the coin will land on one side. If you know that the coin is biased on one side, you can make an
assumption. You can conclude that the coin would be more likely to land on one side, and you can assume that the coin will land on side A, by virtue of it being biased on side A or something. Following me so far? Good. Now, say you know everything there is to know about the coin toss, and I mean, everything. Down to the subatomic level. Much like how a computer program always outputs the same values, given the same inputs, the coin will always land on one side, assuming the circumstances are exactly the same all the time. If we know everything there is to know about the coin toss, then we have effectively reduced this random event into an algorithm, an equation. A highschool physics problem, if you want to be dramatic.
So, let's expand this conclusion to the entire universe: If we know absolutely, and I mean,
absolutely everything there is to know about the universe, then we can say that the universe is deterministic. I get what you're saying. Right now, we can't exactly prove this. We don't have the means. As we understand things right now, there will always be this uncertain part of the universe. But what if this was solvable? What if we unlock the secret, and everything's clear? Then randomness would cease to exist, basically.
And my second point still stands, regardless of my first. A deterministic universe still implies a lack of free will.
Oh god, I should be studying instead of this shit.