If you spend the money on a new stadium, you might make a profit. If you spend the money on upgrading school lab facilities, you might inspire someone to make a vaccine for HIV. - nathanww [more]
This mathematical proof shows that the fastest way to drive from one position and heading to any another position and heading is to turn on the spot, drive in a straight line, then turn again.
If you spend the money on a new stadium, you might make a profit. If you spend the money on upgrading school lab facilities, you might inspire someone to make a vaccine for HIV. - nathanww [more] 
