And using that logic in about 50 years would earning more than...

And using that logic in about 50 years would earning more than all other companies in the world put together.

Actually I think three years is about the limit of reasonably reliable earnings forecasts.

I still say that a current PE of 50 is high in relation to 20% earnings growth over the next three years. I believe the rule of thumb is that if PE ratio divided by forecast % growth rate is greater than 2, then it is expensive.