Does Schaffer truly believe that the value of a Sherpa life can be stated in numbers? Why or why not? Use evidence from the text to support your inference.

Based on the available information in the prompt, it is not possible to determine whether or not Schaffer truly believes that the value of a Sherpa life can be stated in numbers. The prompt does not provide any evidence or information regarding Schaffer's beliefs or opinions on this matter. Additional context or information would be needed to make an inference about Schaffer's perspective.