This is super cool and I very much Want This Thing - so a sign that your pitch is clear! I like the section at the top of vision where you spell out an example user flow, that does a lot to generate the feeling of "yes!".
It's clearly both crazy ambitious and also eminently decomposable - it's clearly possible to prioritise out an MVP as long as you can make some progress on that core semantic composition piece of technology. You do a little bit of science/research and then suddenly unlock a lot of possible engineering. Seems like great timing to try to start this with a small team.
If there's anything else I'd like to see in this pitch it's a competitive analysis - who else is doing things in space? or if there is nobody, what's the nearest thing that might hit this value vector?
Overall very excited by your products! if the core tech works, I will buy them :)