But if you believe in the lessons of history, historian David Schwartz has further evidence to to worry you.

BBC: More

"Fundamentally it happens when the last buyer puts in his last buy order, " says David Schwartz, stockmarket historian and crash prophet.

BBC: Dot.com doomsters see more share falls

David Schwartz, chief curator of the Museum of the Moving Image in New York says one man in particular helped launch that space craze.

NPR: Space Race Permeated Pop Culture

While most venues have those run-of-the-mill mics -- which typically enlarge diaphragm size to increase sensitivity -- David Schwartz thinks he has a better idea for picking up even the slightest peeps without introducing distortion.

ENGADGET: Inventor patents laser microphone

Mr. DAVID SCHWARTZ (Chief Curator, Museum of the Moving Image): What Disney did that was really important was he teamed up with the scientist Wernher von Braun, who was really the most prominent scientist of the United States and was trying to promote the idea of space travel.

NPR: Space Race Permeated Pop Culture

Work-life management experts Tony Schwartz, David Allen, and others have useful techniques for setting up routines to get more done.

WSJ: How to Save an Unproductive Day in 25 Minutes

Extending about a mile and a half along the Pacific Coast Highway, the tony enclave is comprised of 70 lots crammed with beach houses belonging to billionaires like David Geffen, Haim Saban, Eli Broad, Paul Allen and Gerald Schwartz.

FORBES: Attention Larry Ellison: A $23 Million House On Billionaires' Beach Coming To Market