You think you really need that shiny new MacBook Pro?The Swingin’ Stewardesses Well, if Jack Dorsey can run Twitter and Square -- both multi-billion-dollar companies -- without a computer, laptop or a tablet, then you probably don't need one, either.

So how was this incredible fact discovered? Well, Dorsey's tweets do typically seem like they're all posted from a mobile phone. So Quartz reporter Dave Gershgorn straight up asked Dorsey whether he uses a computer or a laptop, to which Dorsey simply replied "no."

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Later in the thread, Dorsey was asked whether he at least uses a tablet, but the answer was, again, negative.

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And a desperate attempt by Microsoft's Paul Fabretti to get Dorsey to start using a Surface Go was met with a cruel, blank stare by Dorsey (or at least that's how we imagine him looking at his phone).

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Everyone's job and routine is different. If I had to type this text on an iPhone I wouldn't be too happy about it. But it's still impressive that someone who runs two major tech companies can do it without using a computer -- well, according to him, anyway.

UPDATE: Oct. 12, 2018, 9:36 a.m. CEST This was not the first time Dorsey said he doesn't use a computer. The tablet thing is new, though.