Is Bezos biting off more than he can chew? Until a few years ago Amazon wasn't profitable but it was living within its means, and just re-investing whatever pro

Is Bezos biting off more than he can chew? Until a few years ago Amazon wasn't profitable but it was living within its means, and just re-investing whatever profit it made. Has Bezos stopped using that strategy in favor of a much more aggressive "going big or going home" investing strategy?