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The phrase 'X needs no introduction' should never, ever be uttered when introducing any speaker X at any meeting. There are almost always people attending who wish to know more about who X is, what they've done, and why they're there.
Speakers who would literally need no introduction in most American contexts:
1) POTUS
2) Dwayne @TheRock Johnson
3) Oprah Winfrey
If the speaker isn't on this list, they need an introduction
I'm a name in at least eleven houses. Does that count?
Bron Bron
He is a talented sportsman, I understand?
Think the Rock could win as an independent?
Yes, if he had bold policies and minimal closet-skeletons.
If it is a truly academic meeting, the ideas should be put on display, not the prestige of the speaker. Many times the introduction drags out, and it takes away from the speaker.
It’s also context dependent. If you’re at an event hosted by the Perimeter Institute for Theoretical Physics and the speaker is Freeman Dyson, you probably know more about him than you do about Oprah or the Rock.
That’s funny.
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