How did Anthropic measure AI's "theoretical capabilities" in the job market?

Anthropic's recent report showing AI could theoretically handle 80 percent of tasks across most job categories relies on outdated 2023 projections that made highly speculative assumptions about future AI software capabilities. The underlying study used AI experts unfamiliar with specific occupations to guess where language models might eventually reduce task completion time, creating what researchers admitted were subjective and limited predictions with no timeline for implementation.