Please don’t use the “look at Amazon” example. Amazon had positive margins early on and was using cash to buy and build real assets. Amazon also pivoted to an entirely different business where most of its profit comes from - AWS.
No, AWS wasn’t born from Amazon selling excess capacity.
That’s just like saying that if every company rehired its first CEO it could be worth multiple trillions.
Profit for who? All VCs want is for the company to IPO, because that's when they can get their money back with a nice profit. The company itself doesn't have to be anywhere near profitability to IPO. Look at Uber, Airbnb, Dropbox, etc.
Amazon never made any profit because they were always reinvesting. If they had scaled back to "normal business" levels of ambition at any point they'd have been "normal business" levels of profitable.
look at the Amazon example. they were unprofitable for a very very long time. and the retail business is still very miniscule margins