I have seen some amazing presentations and heard some great conversations by scientists and inventors and entrepreneurs lately. I highly recommend taking a look at:

Hans Rosling’s presentation on how the world is changing. If there is simply one thing you must see, that will give you hope for humanity and a greater understanding of the world, it is Hans Rosling’s talk. It’s about how the countries of the world have changed over the last 40 years,and it’s super rich data presented in an amazing visual style: (http://tedblog.typepad.com/tedblog/2006/06/hans_rosling_on.html)

James Dyson’s presentation on his personal history of invention. (http://mitworld.mit.edu/video/362/)

Tina Seelig’s presentation of 10 things she wish she knew when she was 20. (click on Seelig’s video at http://etl.stanford.edu/archive/)

Fabrice Grinda’s discussion of his entrepreneurial career. (http://www.venturevoice.com/2005/12/vv_show_21_fabrice_grinda_of_z.html)

Also, be sure to check out other presentations from the organizations that put up such interesting speeches:

TED (http://www.ted.com/)

MIT World (http://mitworld.mit.edu/)

Stanford’s ETL program (http://etl.stanford.edu/archive/)

Venture Voice (http://www.venturevoice.com/)

Truly inspiring stuff!