From education to brain function to inspiring messages to techno-possibilities, this list represents quite a breadth of topics.

1. Sir Ken Robinson says schools kill creativity (2006): 14,850,200 views
2. Jill Bolte Taylor‘s stroke of insight (2008): 11,225,783
3. Pranav Mistry on the thrilling potential of SixthSense (2009): 9,897,347
4. David Gallo‘s underwater astonishments (2007): 8,204,051
5. Pattie Maes and Pranav Mistry demo SixthSense (2009): 7,747,690
6. Tony Robbins asks Why we do what we do (2006): 7,564,235
7. Simon Sinek on how great leaders inspire action (2010): 7,539,516
8. Brene Brown talks about the power of vulnerability (2010): 5,861,510
9. Steve Jobs on how to live before you die (2005): 5,444,022
10. Daniel Pink on the surprising science of motivation (2009): 5,534,123
11. Hans Rosling shows the best stats you’ve ever seen (2006): 5,249,928
12. Elizabeth Gilbert on nurturing your creative genius (2009): 5,020,869
13. Arthur Benjamin does mathemagic (2005): 4,951,918
14. Mary Roach on 10 things you didn’t know about orgasm (2009): 4,793,334
15. Dan Gilbert asks: Why are we happy? (2004): 4,759,217
16. Keith Barry does brain magic (2004): 4,475,303
17. Stephen Hawking asks big questions about the universe (2008): 4,470,236
18. Johnny Lee shows Wii Remote hacks for educators (2008): 3,997,174
19. Jeff Han demos his breakthrough multi-touchscreen (2006): 3,982,775
20. Barry Schwartz explores the paradox of choice (2005): 3,836,350

Compare and contrast how the 2012 list of the most popular talks stacks up to the 2011 list, written on the fifth birthday of TEDTalks videos.