In a recent oral argument, Judge Chen noted the confusion caused by the Federal Circuit’s ยง101 case law. He posited a hypothetical as to whether an earthquake prediction system should be patent eligible? You can listen to his hypothetical here:
Judge Moore chimed in that she hopes a case like that will make its way to the Supreme Court, as the Court might actually find something patent eligible and there would be a bookend.
I will add this sound bite to the audio key page for Judge Chen.