Richard Pyle dives the reef's Twilight Zone

I've made hundreds of dives in submersibles.

And that's what we use to inject, as we start to do our deep dives.

I'm going to show you what it's like to do one of these dives that we do.

A young man on our boat is an EMT. He dives in to try to help me.

Then, as the rocket dives down, velocity picks up again toward a maximum velocity and the rocket hits the ground.

This is the high tech gadgetry that allows us to do what we do on these kinds of deep dives.

But I would come back from those dives and try to share the experience with words, and they were totally inadequate to the task.

And sharks we had sharks on our early dives, up to 150 sharks at once, which is an indication of a very, very healthy, very strong, system.

And I remember coming up from one of these deep dives, and I had this fog, and the narcosis takes a little while to, you know, fade away.

I had just returned from one of the deepest dives I'd ever made at that time, a little over 200 feet and, I had caught this little fish here.

This one we actually first discovered back in the air days the bad old air days, as we used to say when we were doing these kind of dives with air.

In an intimate talk, Barry Schwartz dives into the question How do we do the right thing? With help from collaborator Kenneth Sharpe, he shares stories that illustrate the difference between following the rules and truly choosing wisely.

This came out of hundreds of dives I have made, farting around in the dark using these platforms, and my impression that I saw more animals working from the submersible than I did with either of the remote operated vehicles.

From the TED archives The legendary graphic designer Milton Glaser dives deep into a new painting inspired by Piero della Francesca. From here, he muses on what makes a convincing poster, by breaking down an idea and making it new.

As the stock market dives, they receive margin calls and are being forced to sell their shares at ever lower prices, causing the stock market s downward spiral to accelerate. In Soviet fashion, the Moscow stock exchanges closed for four days in a row in the week of September 15, because stocks plunged too fast.