Evolution or Revolution

Mark Brenwall: Stories on sobriety, moving across the world and starting again at 40

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At 40 years old, Mark Brenwall had it all. He lived in a loft in San Francisco's Mission District. Working in tech, he had money, he had friends and big nights on the town.

But it took him 20 years to realize it just wasn't for him.

Sobriety helped give him to space to see that he wasn't happy -- but also wasn't sure what was next. Mark shares each step of those transitional years from…