Apple's rare revenue warning left out something major — and it's a sign of how difficult it is to predict the coronavirus' impact on business (AAPL)

5:11am PST - February 20th, 2020    aapl - Business Insider

Apple said its revenue for the March quarter would be lower than the guidance range it provided in January because of the coronavirus, a rare move for the company. It didn't provide a new estimate, however, underscoring how difficult it can be for companies t…