1-10^-k. But if k is ever finite, then 1-10^-k=/=1 Thus k must be infinite. 10^-k converges to 0 as k tends towards infinity. Since k cannot be finite, 1-10^-k=1

Once you have automated cars, you can actually take a look at changing the rules to make it more efficient. With humans in the way, you can't change the rules without massive problems.

Woman? Oh you mean like Thatcher? Or Merkel? Wait, nothing has come of that. It would be much worse if a Muslim was elected Prime Minister/President, then the shit would hit the fan.