My son will be born any day now. My great aunt is 96, born in 1925, I believe. I intend to get them together, within the first few months. She's (slowly) losing her mental faculties but has agreed to some candid interviews for the kids. We've already got a bunch of great pictures and videos of her with our 2 year olds.
It's interesting to think that these people who might be 130 in 2150 could have a direct connection back to the 1920s.
I am not sure "primitive" is the right word. Compared to rural america of the XIX century perhaps. But compared to major cities in Europe, I don't think that our architecture or music are any less primitive than Haussmannian architecture, and Rossini's music. The language has certainly deteriorated. We have more technologies, we have more, cheaper stuff. But we not particularly more sophisticated.
Can't remember where I read this (David Halberstam's The Best and the Brightest?), but in the 1930s, a nonagenarian Justice Oliver Wendell Holmes, Jr. (1841-1935) told a young lawyer, "young man, you are speaking to a man who once spoke to a veteran of the Revolution"; IIRC, in the late 1960s or early 1970s, the now-middle-aged lawyer spoke with Halberstam.
At the very least, we will have an accurate inference and convincing portrayal of a person’s reflections on life in 2150–whether they are still “alive” or not.