Which comes full circle to baboons suggestion of the ant hive mind, a suggestion which makes more sense the more I think about it.
......just.......no. NO! My offering for the greatest living mind has to be the cliché. Stephen Hawking. I then think....shouldn't necessarily be a scientist. So I immediately jump to Martin Scorcese.
Physicist Dr. Michio Kaku So many to chose from..... I'll say Physicist Dr. Michio Kaku. I had the pleasure of listening to many of his lectures on local college radio stations. This is fairly close to one of the lectures he gave. Start at part one.. http://sciencestage.com/v/27148/dr-michio-kaku-sci-fi-or-sci-fact-lecture-part-1.html One discussion that has grabbed my attention, that isn't listed in the link I've given above, is how medical brain imaging resolution is getting finer and finer. To the point that they are currently able to rough image what you are looking at just by scanning your brain. The equipment is shrinking in size just as computers have shrunk and gained power over the decades. How long until things like this is tiny, implanted subcutaneously or even in clothing? In the future, mind reading, through technology might be common place. To someone of today even look magical, kind of how someone from 1900s might view technology of today, if we could pluck and plant someone like that.