It's really not. Weather is such a dynamic factor that if you went by forecasts alone or a wx briefer, you'd never be able to go. Computers can't also do pref

It's really not. Weather is such a dynamic factor that if you went by forecasts alone or a wx briefer, you'd never be able to go. Computers can't also do preflight inspections where you physically inspect the condition of the aircraft, sump fuel, etc.