Thomas coupling, you argue strongly that ‘retiring @ 50 cannot be good for anyone.’ If that is what you feel is necessary in order to achieve mental stimulation or feel some sense of purpose, then good luck Sir! I retired from the RAF two and a half years ago at age 55 and have no desire to seek paid employment. Now pursuing educational, charitable and social activities the major challenge is how to select and achieve chosen purposes whilst balancing the limited time available. Struggling to stay sharp? I don’t think so….
Sorry if this sounds a little punchy, it must be time for the medication....