I'm poking around with a new save trying to understand how phantom technologies work but it doesn't seem to update phantom technologies as pre-requisites are researched.

For example Automobilism, I have Logistics 2 researched but not engines. I also cut all the %s to reveal phantom technologies in half (ex. reveal phantom name = 25%)

None of the phantom technologies have names or descriptions with these settings and it seems to be showing phantom technologies 2 levels deep.

Thank you for your help.

At the moment, phantom studies can only show an icon. I'm still thinking about how to update the names and descriptions of technologies during the game, and I don't like what I've come up with from an optimization standpoint.

Also, one of the options requires rewriting technologies into a completely new interface, and this requires high compatibility and time.

Thank you for explaining.
I would recommend for clarity either hiding the options that reveal names and descriptions or noting in the setting description that it's still WIP to avoid confusion.

For how to reveal names, just an idea, since you're already hiding and showing techs could you generate separate phantom techs with a name and techs with name and description, then hide-unhide those at the right threshold just like you do with the current phantom techs and real techs.
Maybe that's already what you're concerned about for optimization?

Thank you for taking the time to explain.

One of the options was to create 3 copies (icon, icon + name, icon + name + description), but this caused the game to load VERY slowly, so I abandoned this and am thinking about a new solution.