Some of the Transhuman stuff was taken from the game Anno 2070. The Holographic Projector is one of them.
http://anno2070.wikia.com/wiki/Projector_Plant
Since there is a limited amount of map resources I had to utilize the combo resource bonues. This makes their appears very rare but it is very late in the game too.
Without bringing it up I think that is one of the main uses of it. Thus I would rather not switch it to graphine.
We also have to remember that resources can appear on the map later through events. So having Iron next to Lead is not as rare as you think. Though it would be nice to have some sort of "Procepector" unit to find new sources of minerals in late game.
Hydromancer, it makes zero sense to not change the requirement, I'm sorry, but as it stands, no one can build the Holographic projecter at all without being insanely lucky.
I have never once found an event that throws lead and Iron ore around.
Even mines don't have a high enough chance all game to spawn lead and iron like that.
I'm not running 3000 turns just to get iron and lead around. That's a hilariously bad game balance idea. Worse than that World Wonder that caused Grimith to rage quit this mod.
I'm sorry that I'm annoying about this, but it is an issue.
You're basically forcing people to world builder in iron and lead mines, just to have a chance in hell of completing buildings all the way in the transhuman era. Do you have any idea how absurdly silly that is?
Please fix it, think of the drones, they look up to you.
Please do not turn into Zappara who cannot handle criticism and doesn't work on fixing issues brought up.
This is the main reason I stopped playing Rise of Mankind. It all had to do with Communism. Really, it did.
It's how I found this mod, and how I enjoyed it since it essentially started. Please do not kill my enjoyment of the mod by being a new Zappara. I'm sure he's a great guy and all, but he's not a role model.
If you change anything, please change this. Graphine is easier to make, and makes more sense than manganese, especially since it's not a rare earth element.
I mean, it's not as common as iron, but it's not so rare that it deserves to be nearly impossible in the game to find unless God(Or any deity of your choice) himself smiles upon you with luck.
I'm glad to know the book issue was a typo, by the way.
I just see no reason not to change a game balance issue that completely removes an entire set of buildings from being built. I'm not trying to ramble on for 100 years, but this is not something you can dismiss with "It's not as rare as you think to get iron and lead in the same city."
How many games have I played where that has never happened in this mod? Dozens. I wish I was exaggerating the difference here, but if you claim it's not rare, why has it never happened to me before ever? In all the time I played the mod?
I'm simply stating that you shouldn't punish people for not having insanely good luck. This is lottery winning level luck to get iron and lead in a city radius in this game. It's a hundred thousand times rarer than starting a game on a map, and getting 4 gold ore hills right next to your starting city. I've had the 4 gold ore hills before in base BTS. I know how uncommon it is!
Again, I'm sorry for rambling and ranting here, but I simply don't see how ignoring this problem makes it go away. I really mean no disrespect to you, Hydromancer, I respect you, I respect StrategyOnly, but I've made it to the Transhuman era without getting iron and Lead in the same city radius, and had to world builder it in. I should not have to do that, and I should not have to rely on blind luck.
This is a far more serious issue than my complaint that Gentlemen's Clubs, I.E Strip Clubs, should not be killed by a Prostitution ban.

Or the whole nuclear meltdown on buildings that don't have nuclear fuel rods in it.

Or that plague event that doesn't even kill 47 population, but turns them into zombies.

With the bad scaling side effects from the option to take care of the infected with fire.
Might as well turn that option into "Nuke it until it glows."
I'm sorry for getting carried away here. I take medication, and some times I forget it, and it makes me ramble if I don't take it. I have Asperger's focus on things, so I tend to be a bit more crazy than the average person.
I don't mean to be, though.
I found another thing to adjust, a Utility fog, I think that is it's name, which gives a major boost to production in cities, also has the meltdown flag.
It's required to build another building.
I really don't think any building that is required to build another building should have the meltdown chance.
Yes, a nanite swarm can go berserk and turn the world into a giant Von Numen machine.

But you know, Nanite Swarms have already been nerfed, so I don't consider them a threat anymore.
I'm just saying, a building you are forced to build, should not doom your cities to be new micromanagement hell when a meltdown occurs and you have to rebuild 50 buildings. Maybe a world wonder that prevents all nuclear meltdowns, and disasters needs to be build when you reach some really advanced tech.