The fear of an AI apocalypse has persisted for decades in movies like WarGames and the Terminator series, but now that worry is becoming more than speculative fiction. Both current and recently-departed Anthropic researchers argue that there's a real possibility AI could kill humanity — although the issue is complex.

Spreadsheets are difficult to avoid, and a lot of what you have to do with them is pretty tedious: endless formatting, cleaning up data, and other repetitive tasks. And, worse yet, you often can't just throw AI at the problem—spreadsheets can contain information that you can't upload to Claude or ChatGPT because it is confidential, or even legally privileged.

Every time you upload a file to a cloud AI service, you trust that they'll be responsible stewards of that information. When you're talking about medical data, financial records, personal details about your life, or any other sensitive information, that is a big ask.