Imagine for a second that this suggested 1,000 year life span was divided up in lots of 100 years, and as you reach each 100 year anniversary you had to decide if you accept the responsibility for next 100 years. As time goes by, how many would actually accept that responsibility if your lot in life had limited civil liberties? Such as a slave or lowly mine worker in east Africa. Or, a murderer locked up in prison for life. Or, as in the case of my mother who suffered from Diphtheria for life. A 1,000 year life span would have different value depending on your wealth, health and class status. For some they would welcome the opportunity

, for others it would feel like drudgery

.
On the other hand, a 1,000 year life span would add a whole new aspect to incarcerating someone for a period of 950 years at a cost of $50,000 or more per year. A single year of decisions on life sentences could potentially bankrupt the nation forever and the number of prisons would significantly increase.
A 1,000 year life span would also put a new aspect on history. People could tell you if Marco Polo actually visited all the places he claimed in his book. They could fill in any gaps in the Dead Sea Scrolls, and could tell us about the Jesus they came to know personally. A resume for the position of CEO at Goldman Sachs would include such qualifications as assistant to Genghis Khan. Maybe Genghis Khan himself would apply for the job. Wow, imagine choosing between Henry Paulson and Genghis Khan. The primary elections for President could be a choice of John Locke, John Adams, Thomas Jefferson, Charlemagne, and Gaius Julius Caesar. Those who like to distort history for their own political gain would have a hard time because there would be too many people around who could remember the truth. Lee Iaccoca may never have developed the Mustang because Henry Ford would be still at the helm of the Ford Motor Company. The American Civil War could have been ended by Napoleon. Ancient Egyptians could recreate the volumes of the Library of Alexander. And, Pytheas would be sending me an email about the proper location of the mythical island of Abalus.
And, think about the impact technology would on your life over 1,000 years.
(Oh, I know someone is going to challenge all the foreigners in the presidential primary list, but remember, as I was reminded, this is speculative history, so anything goes.)