Amazon has been cash flow positive since 2003. Amazon has a unique negative cash flow cycle where they collected revenue significantly prior to paying their accounts payable. As long as they are constantly growing, it is basically like running a business on a credit card.

Tesla is in a completely different situation. Cars require massive upfront investment before their revenue is realized, and given the results just posted, Tesla will most likely post a quarter with declining revenue.

People should stop comparing things to Amazon. Amazon was successful because it was unique.