So, I was reading about Sir Isaac Newton and Da Vinci last night.....then I thought to myself, who in our modern era(say roughly 1970's to present) would be considered a great thinker of our time?
The only answer that I could come up with who has made vast contributions to his field of study has been Stephen Hawking. Not only has he added so many new views on astronomy and time, but he also has done it while being confined to a wheelchair due to his disability.
So, foo, who is this modern era's greatest thinker? It can be someone in politics, the military, or a certain field of study but you have to explain WHY they should be considered this since they likely would have/are changing the landscape of their respective area of expertise.