The Y Combinator Startup Investor said (http://ycombinator.com/video.html):
Please do not recite a script written beforehand. Just talk spontaneously as you would to a friend. People delivering memorized speeches (or worse still, text read off the screen) usually come off as stupid. Unless you're a good enough actor to fake spontaneity, you lose more in the stilted delivery than you gain from a more polished message.
Do they mean that we should not write what we want to say in advanced and read it while shooting the video?
What does "text read off the screen" mean?
& What does "you lose more in the stilted delivery than you gain from a more polished message." mean?