I want to know what makes half life so popular. I have seeing post of "half life 3 is coming" a ton throughout the years, and so it peek at my curiosity. Can you explain what the story is about in HL 1 and HL 2, and what makes them so awesome. Thanks
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A "half-life" is the amount of time required for 1/2 of a given quantity of a particular substance to decay.