51. Earthquake Forecasters – Everything we know about the inside of the earth has been developed through indirect evidence. We have no maps of the center of the earth. We have no accurate diagrams, no understanding of motion, fluidity, or changes happening with any degree of accuracy. While scientists are developing skills to work with nanoscale precision on the earth’s surface, the best we can muster below the surface is blindfolded guesswork done with 100-mile precision. What we don’t know is literally killing us – over 226,000 killed in 2010 alone. But that will change over time as we begin to understand the inner working of the earth and accurately forecast when the next big quakes are about to hit. More details here.