Alliance victory needs balancing!

I ended up several times winning games way to easily because of the current alliance victory system, and I really think it needs some tweaking. Here is how I think it should be :

- Supremacy victory : no change here, the alliance has to own all the home systems.

- Conquest victory : has been fixed already, the more players there is in the alliance, the more systems you have to conquer.

- Score victory : the average score of the alliance could be calculated and taken in consideration, in order to make it fair for players who didn't ally to anyone (maybe it already works like that, I have to say I never had the occasion to try that)

- Tech victory : for each player in the alliance, the number of technologies of the Endless that would be required to win could be increased by 4. A single player in the alliance would then be able to research the 4 technologies several times, even though he/she wouldn't get additional bonuses, and would need more science points to research them. So, in an alliance between 3 people, either a player needs to reasearch the 4 technologies of the Endless 3 times, or all the players have to research them once.

NB : a player could also do it only twice while one does it once (you got it).
The current system only asks for 6 technologies for 2 players, and allows players to trade those, meaning that one player can research the 4 technologies of the Endless, while the second one only has to research one, since his ally can give him one.

- Wonder victory : we could multiply the number of required Wonders by the number of players in the alliance, and make victory wonders more and more difficult to build for a single player in the alliance, depending on how many he already has (the aim is to encourage people to go for the objective together).
It is currently way too easy.

- Economic victory : we could multiply the amount of dust that is required to win by (at least) something like 2.25/player. Since trade agreements and all that stuff can be very beneficial in making money, I would say it has to be more than 2/player. Also, considering that dust income can increment very fast at the end of a game, the multiplier could even be set to 3/player or more.
I find economic victory already easy for one player, and alliances do not make it more complicated in my opinion.

Two last things : first, the "Perfect Diplomacy" technology could also add the possibility to ask people in the alliance to sign a contract that would prevent them from leaving the alliance to win alone (we could say that it would consist in setting up a dangerous planet cracker explosive on every single allied planet, in order to be sure that the player deserves everyone's trust).

Betrayal would be still possible as long as the contract isn't signed.

This contract could also be a useful tool in bleakorange and MidnightTea's diplomatic victory. As soon as the contract is signed by only one player unilaterally, the other player could decide to play with this player's trust and to "press the red button" when he feels like it.

And second, an alliance chat, and even a private chat channel would maybe help in diplomatic relationships. I ended up several times talking to people on Steam to avoid revealing information to everyone in the game.

I am really glad to see devs & co. answering to suggestions. The game is already amazing, but I'm just trying to find the very few things that could be still improved.