An impossible computer is different from a computer that humankind can not yet build. If our universe is a simulation, then some entity has already proven you wrong. If our universe isn't a simulation, our limited resources prevent us from running (detailed) universe-scale simulations. I'd say that we will eventually be able to simulate a drug interaction from these rules (it's the interaction between these rules that's the key) but I won't predict WHEN that might occur.

Those are all reasonable beliefs, but still fall in the category of “faith”.

You are saying that we don't have a computer fast enough to simulate a drug trial, but you are not actually disagreeing with the parent.

No, I’m saying no computer will ever simulate it with only those equations. Higher level equations are needed which cannot be derived from the given ones, they can only be discovered through additional science.

The 9 lines do not say this. The lines do say that drugs are made of atoms and that the molecules follow quantum theory.