Ask HN: Do you work on improving your memory ?

If I read an article on Harvard Business Review or if I read some books like Good to Great by Jim Collins and I go to some kind of networking events and talk to some CEOs and while I share my ideas and the next thing is that I can't even recall what I just read from those books/articles and I can't prove myself or defend my ideas to these people or while I'm in negotiations.

Anybody else had the problem when your talking to your colleagues or while in negotiations you can't recall the stuff you read and do you think how strong you memorize stuff might be single most predictor of success in your career ?