The fear of the real trade

"The fear of the real trade" that We cannot take in by the demonstration trade.

 An example
demo - Walking on the long and slender board put on the floor.  (not painful, or not losing money even if you lose. )

real - Can you walk similarly on the same board put on between the buildings? (with painful, or going bankrupt possibly when you lose.)




This difference produces crucially different mental status depending on a person.
For such a person, a demonstration and the real trade may be said to be totally another thing.