Whilst I'm sure that's true on technical areas of great detail, a lot of celebrity speakers turn up and do the same talk over and over again. This is particula

Whilst I'm sure that's true on technical areas of great detail, a lot of celebrity speakers turn up and do the same talk over and over again. This is particularly true in the case of someone with a story to tell, ie, war hero, ex politician, ex founder with a big IPO, etc. Your point stands - I was just throwing figures around. I'm doing my first conference presentations in two months time, and I expect to take probably 40-60 hours to present two 60 minute sessions. And I don't get paid for it at all!