Comment Re:Sharpest tool? (Score 0) 516
Well, you do have the "tool" part right.
The CO2 from your breath is not the problem. The CO2 from your tailpipe is.
When you said CO2 from my tailpipe, I was thinking "CO2 from my tailpipe? Doesn't he mean methane?" Then I realized you meant my CAR'S tailpipe.
"Necessity is the mother of invention" is a silly proverb. "Necessity is the mother of futile dodges" is much nearer the truth. -- Alfred North Whitehead