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It Costs So Much to Run ChatGPT That OpenAI Is Losing Money on $200 ChatGPT Pro Subscriptions
(futurism.com)
If you can't even make a buck torching the planet so people don't have to write their own emails, how do you live? 
Specifically work emails where there's this weird standard of formality. My work started using Slack and while obviously it's still not great, it's viewed much more casually.
I don’t like Slack for pretty nitpicky reasons but getting rid of the weird email standard of formality is probably the biggest upside