Wouldn't it be great if we could run cars off compost? That's not the topic of a TED Talk, but, sadly, that small nugget of an idea is all you would need to be granted the freedom to pontificate before an audience of naive dreamers at a hokey conference. This is actually The Onion's first TED Talk parody. And it's incredible. The best line? "I'll be your visionary, and you do the things I come up with."