The director of currency forecasting at Champaign-Urbana Corp. says, The most critical task of forecasting exchange rates

Question:

The director of currency forecasting at Champaign-Urbana Corp. says, “The most critical task of forecasting exchange rates is not to derive a point estimate of a future but to assess how wrong our estimate might be.” What does this statement mean?

Exchange Rate
The value of one currency for the purpose of conversion to another. Exchange Rate means on any day, for purposes of determining the Dollar Equivalent of any currency other than Dollars, the rate at which such currency may be exchanged into Dollars...