The number of wearable fitness products has been growing at a fast pace, but an Apple offering would shake up the industry completely.

CNN: More than a watch: Apple's entry into wearable tech

But he worries about what might happen if central bank dollar reserves stop growing at such a fast pace.

FORBES: The Dollar's Doomsday Scenario

While the U.S. real estate industry is in a Depression with a capital D, China is concerned that its real estate industry is growing too fast and is also trying to slow it to a more sustainable pace.

FORBES: Khrushchev Could Not Bury U.S., China Just Might