Extreme Longevity? He Lives It By Kerry Pechter Fri, Jan 17, 2020 SHARE ON: TwitterFacebookLinkedIn Nearing age 100, social scientist Jacob S. Siegel is still vigorously lecturing and writing. He spoke about the 'demography of retirement' at the triennial 'Living to 100 Symposium' in Orlando, Florida, this week. Already a subscriber? Log in here This article is FREE for you... Create a free account to access this article and get more Retirement Income Journal information sent to you by newsletter. Email Password Or, subscribe now for unlimited access and a free book sent to you! By submitting your email address you agree for Retirement Income Journal to send you communication by email