Hopefully not in the wrong section, sorry.
New to the site and was wondering if I could get some opinions on what other conspiracies are needed/involved to make this one possible? I'm coming up with a few ideas but am not sure yet
Do you mean an alleged conspiracy where people are pretending Earth is round, or pretending it is flat.
Pretending it is flat needs basically nothing.
All it needs is a few clever con men that can spout nonsense and get people to believe.
If you mean "pretending" it is round, that gets more complicated, especially when dealing with the past and needing to distinguish between alleged ignorance and part of a conspiracy.
Civilisations have come and gone which accepted that Earth was round. Were they in on the conspiracy, or just ignorant?
It also gets complicated when dealing with motivation.
For example, NASA and their rockets/satellites.
They are building these and launching them.
Is everyone involved in on the conspiracy, which then allows them to save a bunch of money by making toys instead of the real deal, which they can then profit from? If so, that money will get spread very thin making it pointless to continue.
If not, then people are building rockets designed to go to space, with fuel to go to space and with satellites/space probes costing so much it isn't funny.
That then leaves pretty much nothing for any conspirators to get as profit.
You then get other issues with groups like SpaceX, getting paid by NASA.
They would need to be in on the conspiracy as well, and get loads of money, but a lot of it would be them simply wasting money with all their tests. This spending makes no sense if they don't stand to profit a lot.
So either they need to be getting a lot of money from NASA or whoever is running the conspiracy, or they need to be quite ignorant and not realising their stuff isn't going to space.
As a bare minimum, you need everyone, from every country that has gone to space, and those (or at least key people) responsible for the satellites determining their position.
You also need to cover the amateurs, including racketeers which launch rockets to space, and those that just look, looking at various satellites in orbit, collecting data from them (for example, anyone (at least in the US) can capture data from the GOES satellites, and even just looking at stars, which make no sense.
Then comes the others who would also experience effects of a non-round Earth, such as anyone responsible for navigation, including pilots of pretty much every air line (although some in the southern hemisphere would be most effected).
Lots of routes simply make no sense on a flat Earth.
The distances are also completely wrong for lots of flights so they need to change the amount of fuel, so that would be them as well.
This also includes all the people on various boats, and all the amateurs as well.
Then you have basically all the members of the scientific community, especially those that have "allegedly" done experiments which show Earth is round.
And that applies to numerous countries.
There simply isn't enough money in it to be able to pull off a conspiracy like that.
The only possible explanation is for some supernatural or highly advanced alien entity to be giving these people something or controlling them.
But they don't appear to have anything special.
Which leaves only the option of all these people being under some form of mind control. But if that is the case, why are their flat Earthers at all?
Flat Earthers come from numerous religions, so it clearly isn't their god protecting them from Satan.
So the only option left is 2 different people/groups using mind control technology, but then people should switch all the time and we simply don't see that.