Poker Theory Fundamentals

Hey guys, could someone explain to me what does Polarized and Linear range means and when to use each of these? Thanks a lot in advance!

Phil Galfond is one of the most successful high stakes cash game players in recent years, and in this edition of Poker Strategy Card Player

poker omaha Ranges • As Betting Grows, Ranges Become More Polarized • Keep Your Range Balanced • Playing Against an Opponent's Perceived Range • Range Advantage on Dry

poker ranges chart range ; nuts or bluff So a polarized 3