CIG
predicted great things for SOCS, for example. Big jumps in server FPS were waved around:
Their glossy videos saw project leads envisioning: Significantly improved AI, an end to limits on location additions, and significantly increased player counts etc.
Source: https://www.youtube.com/watch?v=yEwik6g0Lwo&t=309s
None of these grand claims came to pass.
If anything
server FPS seems to have gotten slightly worse, down from the 7-10fps of 2019, to a 6fps average today (3fps if you're in the finale of the Xeno Threat capital ship event).
They made similar grandiose claims for iCache, with Chris underlining its 'road to release' impact (and gameplay enriching coffee cups hidden in forests

)
planned for:
2020: "Round about middle of this year" [In reduced 'first step' form of 'Full Universe Persistence' alone.]
2021: "Probably by the end of this year" [In reduced 'first step' form of the 'entity graph' (previously 'Full Universe Persistence', then 'iCache')]
iCache is of course still missing in action.
That's years and years of hard-selling some relatively workaday technical additions. All of which tends to leave uber fans believing silly things like this…
Expectations (Oct 2019):
"It’s not 100% there yet. As I see it there are about three main things getting in the way of that vision coming together."
- Player Count: Server Meshing, "where multiple servers work in a lattice and hand off information and simulation tasks to each other cooperatively, is still in development and something to be added in the future…"
- AI Behaviour: "SOCS will intelligently cull and time slice aspects of simulation, so much more of it can happen at any given time. Paving the way for more detailed AI simulation." [12m20s]
- Full Persistence: "Full on persistence tracking for item placement, or the status of all the NPCs and characters… is scheduled in the future to come out concurrently with SOCS." [13m30s]
Well we got SOCS. Shame the other stuff didn’t happen :/
But the "this year +1" hopium does help sell plenty of spaceships in the meantime. 2020 was a particularly good year