God must exist in Buddhism

The biggest challenge any God-worshipping religion faces is the existence of evil. What Buddhism attracts me is its doctrine that there exists no God.

Buddha is no God, but an enlightened human, and any human has the potential of enlightenment and becoming a Buddha. Everything in this world, or any previous worlds and upcoming ones, is determined by causality. Good deeds lead to good karma, and bad deeds, bad karma. All the karma will settle up eventually, with no exceptions. This is essentially what Buddhism is to me.

All is good and dandy, except for three things.

One, who has decided what's good and what's bad? With the moral absolutism here, there must be a supreme lawgiver who has already laid out all the ground rules: murdering is bad but donating is good, and such. So that good karma can be rewarded, and bad one, punished.

Two, who is making sure the karma will be dealt with, eventually? Causality doesn't mean that life is predetermined. It means that things happen for a reason. Your greed for money makes you kill a breadwinner for money, whose family may fall into mishap because of the incident. However, there is another level of causality here. Your evil deed creates a bad karma which will determine your future punishment, which could happen in this life or many lives later. Now, who is keeping track of it? Since it's not a direct physical, psychological or physiological effect, there got to be some super Pentium X somewhere recording it.

However, that's only half of the task. We want to make sure the due punishment (or reward) will be delivered someday. So a very good accountant is not enough. The super Pentium X also needs to meddle in so that certain conditions suffice for the punishment/reward to materialize. That's a tough gig. Third thing, that it.

So, for Buddhism to work, we need someone to set the rules of the games, keep tallies, and do a lot of meddling. That's a toughie for any human being...