assuming one-person means one employee, i think it's possible if you allow contractors. however, even then i think it would probably be more economical to hire

assuming one-person means one employee, i think it's possible if you allow contractors. however, even then i think it would probably be more economical to hire employees. there's just so much diversity of skill needed to maintain and monitor a service at that scale. of course it depends on what the business is. maybe there is a niche that works. the way you present the scenario isn't conducive to achieving "one-person unicorn" though. the way to do it would be for an already successful entrepreneur to raise a lot of VC money at a $1B valuation before having a product or customers at all.