That's actually complete wrong. Amazon did have 2 years of somewhat heavy losses (around 1999 to 2002), with one pretty dramatic loss the quarter the dotcom bub

That's actually complete wrong. Amazon did have 2 years of somewhat heavy losses (around 1999 to 2002), with one pretty dramatic loss the quarter the dotcom bubble exploded. But after that, they turned a profit almost every quarters, generally very small compared to their revenue, but a profit, and when they lost money, it was also quite small compared to their revenue (apart from 2 isolated quarters in 2012 and 2014). Basically, apart from it first 2 or 3 years, and some isolated losses, Amazon was, for most of its existence, targeting a slightly above 0% net margin, and succeeded at it, proving it was self-sustainable. It's not the same as Tesla which is consistently losing around 10 to 20% of its revenue for nearly the past 10 years.