@k-a-s-i-a - TED talks are very educational & I often learn about things I would have no knowledge of. Some people seek out knowledge, to use for their own benefit or the benefit of others.
Other people don't seek knowledge, and are left in the dark in my opinion. I try to share knowledge with people and that is one reason I am on Steemt. But, some people you just can't reach.
It's accessible and free for everyone. but you will not force anyone to open his/her head. Good luck on Steemit!