Ocupation: Author
Life: b. October 31, 1959
Birthday: October 31
Just as an informal, nonscientific observation, most people's personalities don't seem to change very much during their lives. There are exceptions in the case of people who go through hugely traumatic events or suffer from brain injury or disease. Some would argue that religious conversions can have deep personality-altering effects. But these are all exceptions to the rule.
source: "Neal Stephenson Speaks about His Latest Epic: 'Seveneves'". Interview With Adrian Liang, www.amazonbookreview.com. May 21, 2015.
topic: Religious, Exception To The Rule, People, Brain Injury, Traumatic Events