How does one keep the AI data-sets from becoming tainted over time or vanishing when those high burn rate companies go out of business in the future .ai crash?
The reason I mentioned it was they used the word immortality. Even Internet Archive may not be able to meet the definition of immortal. I do not know what would have to occur for IA to go away but it's entirely possible.
The closest theorical solution I can imagine would be the one that was used in Star Trek: The Next Generation - S5E25 The Inner Light (1992) where a planet knew they were about to be victim to a super-nova so they launched a long range probe that took control of Picard and let him experience the full life of one of their people to tell a story. Even then it was sheer luck that probe did not fail before it could reach anyone. Realistically millions of probes would need to be sent in every direction and would have to be designed with even greater resilience than our Voyager 1/2 probes and such engineers no longer exist AFAIK.