I suppose that we all feel the other is often wrong, and at the heart of the others argument lays a fatal error. I would like to explore these areas on this thread. I will start it off by posting what I believe well may be the greatest theological error I have came across. If you believe that fundamental error starts at another point, feel free to share it with the list. This OP is not just about what I believe is fundamental error, but what each one of you feel is the basis for the error you find in other systems of thought. Again, we are looking for fundamental error, not just subsequent doctrines we do not agree with. I believe that one of the most fundamental areas of error lies in the notion that if God foreknows, the outcome is predetermined and as such God alone is the cause. The end of this belief can none other than fatalistic determination, with God ending up the author of all good and evil as the sole cause of both. Thoughts?