The argument for God from finetuning of the universe

1. It is an undeniable scientific fact that the universe is fine tuned.
2. This fine tuning may be because of physical necessity , chance or a designer(God)
3. The fine tuning is not due to physical necessity or chance.
(There is no evidence that life permitting universe is physically necessary.The chance alternative is so remote and improbable)
4. Therefore it is due to a designer(God)