Pope Benedict XVI seems worn out.
People who have spent time with him recently say they found him weaker than they'd ever seen him, seemingly too tired to engage with what they were saying. He no longer meets individually with visiting bishops. A few weeks ago he started using a moving platform to spare him the long walk down St. Peter's Basilica.
Benedict turns 85 in the new year, so a slowdown is only natural. Expected. And given his age and continued rigorous work schedule, it's remarkable he does as much as he does and is in such good health overall: Just this past week he confirmed he would travel to Mexico and Cuba next spring.
Advertisement - story continues below
But a decline has been noted as Benedict prepares for next weekend's grueling Christmas celebrations, which kick off two weeks of intense public appearances. And that raises questions about the future of the papacy given that Benedict himself has said popes should resign if they can't do the job.