Bad Years? I Am Omniscient and Omnipotent

Traveling to hell on earth, my golden finger is not combat power, but an omniscient perspective from modern civilization. Natural disaster? I can predict and resolve. Man-made disaster? I can see through and break things. Food, water, plague, war... I use knowledge to crush the entire era. From a refugee to the savior of all people, from an isolated city to the supreme empire. This is not a story of survival, it is a story of a mortal being crowned a god with omniscience and omnipotence.