Grigori Perelman is the man who solved one of the “7 mysteries” of the mathematical world, the Poincaré conjecture. These 7 mysteries, once solved, may change the world as we know it. To mathematicians, Grigori Perelman's proof of the Poincaré conjecture qualifies at least as the breakthrough of the decade.
His initial proof was worked out in over three hundred pages and answered a question that was first asked over 100 years ago. The full ramifications of its solving have not even been realized yet.
Perelman’s discovery illustrates that there is so much about our world that we simply do not understand; however, we plow ahead trusting that we understand all there is to know. This could, and often does, prove disastrous.