The company behind Claude just reported losing $80 billion in six months. About $72 billion of that "loss" happened because the company got richer. Here's how that works. Say your buddy lends you $100 for your lemonade stand, and instead of paying him back in cash, you agree to pay him in shares later. Then the stand takes off and it's suddenly worth 2.5x more. You still owe him the same slice, but that slice costs you a lot more to hand over now, and accounting rules make you write the…