Why alt-tabbing while exploring is a bad idea

CMDR waterlubber was distracted while making his way to Colonia with 400t of Travel Guides used to secure our faction in Colonia and he crashed into the exclusion zone of a neutron star while inside the cone. CMDR SpInFuZoR tries to talk him through as CMDR waterlubber deals with the possibility of loosing his ship 95% of the way to Colonia 22,000LY out from the bubble.