Some comments you hear after a pitch include things like "the founder was kind of annoying" and "man, that was hard to sit through, couldn't imagine being on that board." Strongly worded, yes, but honest (and often directionally accurate). No investor ever would want to put those words into any internal database.
Similarly: few firms require that you write a memo for investments you didn't make. (I've been trying to do this for a few that I've dug deep on but ultimately passed on -- but it takes a lot of time!) This valuable data is not captured anywhere -- how can you try to build an "investment analysis" AI if you don't have these "negative" data points? Will there not some weird bias inherent in the system?
Short of a neural tap (of which I hope I am not alive for), this information will never get recorded, and machines can only learn on things that ... exist somewhere. Transient but critically important thoughts will struggle to find their way to recorded data points, for better and for worse.