DHK,
You are comparing apples and oranges. The problem of the stone (the logical problem posed by many atheists) and the question of the possiblity of actual presense in communion could not be more alike. The first one is dealing with limitations of God, the latter with God's word and promise.
The answer to the problem of the stone is easy. God cannot logically contradict himself. Because he presummably placed the laws of logic in place, then he cannot contradict them. Now, if he is all powerful/knowing/loving etc. Then he would be able to logically lift any rock he created. Thus, a rock which he cannot lift is not possible to even exist as it would be a logical contradiction within God himself.
Now, concerning the Host...we are dealing with sacramentology. I do not think any Christian would dispute God works within the world in mysterious ways. This is one way in which we derive from scripture. It is not a question of logic, but of faith. Do you see the difference? I am going to assume you do not because you will not want to, which I have already said, we will not be able to remedy. You are right though, it is called the Logical fallicy of non-contradiction, first proposed by the ancient Greeks and widely accepted by the time Plato wrote the Republic.
Pastor Larry,
You get to tell us, the Catholics, what we call tradition? Any other words you care to tell a several hundred (if not 2000) year old institution, because they would be greatful for your help I am sure.
As for scripture containing all doctrine, that is what we are talking about, so it is foolhardy for you to simply put it forth. This is the logical fallicy of "Begging the question," when you give forth a point in an argument and assume the argument is true ipso facto.
As for the evolution of God's revelation. I believe in the simplicity doctrine of God. God is immutable, but we are not. We constantly change and thus our perception of the immutable everlasting God changes. Praise him for his steady hand that he remains sturdy! Because we have changed our position in relation to God (i.e. new technologies, new philosophies, etc.) our churches must adapt accordingly.
This can be said of the changes of the church.
Just as int he Bible, any changes we perceive in God are just perceptions. God does not change, but we do, and when we do our "view" changes as it were.
Pax Christi,
Stephen