There are certain points in history in which opportunities present for certain types of individuals. Alexander Graham Bell beat Elisha Gray to the patent office by two hours, giving Bell the credit of inventing the telephone and a one-way ticket to fame, wealth and power. Had Bell not lived, then we might know Gray's name and the Gray Telephone Company would be in our history books instead of Ma Bell. 

In other words, I think this concept, that each life is so precious to the continuity of our world that we can't possibly disturb it or we'll screw up the timeline, is just silly. Instead of Bell we have Gray. Instead of Newton we have Leibniz. People die unexpectedly, but the world keeps on turning regardless, it's the same for this case. 

I'm not saying go out and murder all unborn children. I'm just saying that premise of this commercial is false and so this particular argument against abortion is false.