Depending on who you ask, Ray Kurzweil is either a genius or a madman. I believe both.
He's a prolific inventor, futurist and the leading proponent of the idea of the Technological Singularity. Often referred to simply as "The Singularity", this refers to a time in the future when the sum of computer intelligence exceeds human intelligence. While estimates for when such an event might occur range from 2020 to 2045 (Kurzweil is on the "conservative" end of the spectrum) the implications of such an event are profound.
From this year's prestigious Google Zeitgeist, I give you 12 minutes of Ray K at his most epic. He starts with a mellow, laid back delivery, but start paying attention around the 2 minute mark. Just give a frightened squeak at the end and I'll peel you up off the floor and read the rest of the blog to you, petting your hair whilst curl up in a fetal position and suck your thumb.