Just recently I had to discard the idea of God's intelligent design altogether because for every puzzling and wonderful design such as sexual reproduction you find a myriad of other processes in nature where intelligent design does not fit (i.e. evolution). The only way to assert God's I.D. or God's intervention, you have to follow the Christian methodology:
- I pray to God for something to happen.
- It happens.
- Therefore God.
To maintain the belief in a personal God the believer is forced to ignore all the prayers that went unheard. In other words, he selects the instances that appear to support his arguments, while he ignores all the instances that don't support his argument. And you don't do that when you take an objective approach. Similarly, in order to claim I.D. you have to provide consistency, either all I.D. or no I.D at all.
The only way I can fit God is at the beginning of space/time/matter when He "subjected" all matter to inviolable and eternal laws of physics, that not even he interferes with.