"I think the most likely outcome is that the economy will move forward toward a soft landing, " Yellen said then.

NPR: Transcripts Show Fed Underestimated Crisis In 2007

Warren Buffet, the unbelievably homespun billionaire and long-time Coca-Cola director and shareholder, has been a staunch critic of options accounting and called the soft drink maker's accounting change a "classy move, " adding that he would feel "far more comfortable" if other companies followed its lead.

FORBES: Coke Opts For More Honest Accounts

Scientist are creating a new generation of "soft" machines that can change their shape and size, move in ever more agile ways and even split themselves into smaller robots.

CNN: Robotics discovers its soft side