What's the lowest thing you can think of? Pond scum! What could be the answer to the energy crisis? Pond scum! Turns out that algae (pond scum) is an excellent source of vegetable oil, which can be turned into bio-diesel and used in place of petroleum based diesel fuel. What a bargain!
1st person: Hey, let's start an algae farm and get in on the pond scum business before it even starts!
2nd person: Huh? WTF?!