Sorry to inform you this way, ol' chap. Turns out that if we really wanted to we could have let you out the entire time! Apparently the tech was elementary, my dear hard light reconstruction.
Nah, elementary for 24th! The mobile transmitter was developed within a few years of Moriarty being cube'd.
https://memory-alpha.fandom.com/wiki/Mobile_emitter
Doc's was from the 29th century but Federation was using them in the 25th (Picard s3) but I just assumed they were just based off the EMH one.
So, timey wimey stuff.
25th century. Too late for at least two of the sentient holograms we've seen who really could've used em.
spoiler
RIP Holo-Janeway. Sorry they haven't invented split 7zip archives in your timeline.
How the fuck did I forget that.
My apologies for my stupidity.
Moriarty is such an underrated character, I really wish more was done with him, even in the novels.
Completely agree but I'm not surprised so little was done with them. Conan only made Moriarty to kill Sherlock so there's not much more to explore there. Then CBS was using Moriarty without having the rights to him at first. Kinda fucked up their plans.
Ship in the Bottle is such a great episode and ending for the character, though I wish his appearance in Picard wasn't just a short cameo.