Age is not measured by years. Nature does not equally distribute energy. Some people are born old and tired while others are going strong at seventy.
We're saying no changes for Medicare for people above the age of 55. And in order to keep the promise to current seniors who've already retired and organized their lives around this program you have to reform it for the next generation.
The nearer people approach old age the closer they return to a semblance of childhood until the time comes for them to depart this life again like children neither tired of living nor aware of death.