There are no tools that I know of to provide this context of individual change for those who read what we have written or recorded on video years after the fact. And speaking only for myself, I have changed a little since yesterday and a lot since my early twenties.
Does that make sense? If we think about leaving a legacy for people we can't know but will be able to speak to in ten or thirty years, how do we provide them the insight into the significant or cumulative changes that influenced changes our beliefs? It's not like we can sit down with them over a beer and say, "That thing I wrote about social issue X, well I used to believe Y about it and then really significant things happend to me and I completely changed. I know it's weird."
I believe these are very difficult tools to build because they have to capture some of the more ephemeral aspects of humanity in a way thats easy for the producer to manage and the consumer to quickly comprehend.