Amazon's quarterly losses are largely do to not caring too much about quarterly reports and focusing more on long term investments.

Spending 10 million on warehouses doesn't reduce their profit by 10 million for that quarter. The point is they do not make money, and people who somehow overlook this by suggesting they are focused on longer term infrastructure investments needs to brush up on accounting (profit vs cash flow). Capital expenditures are not treated as expenses.

Interesting. I would love to learn more about accounting. Do you have a suggestion on where to start? (book or otherwise).