Fun isnt something one considers when balancing the universe.

Why did thanos say it cost everything. But this does put a smile on my face. Infinity War Thanos explains how he saved Gamora planet from overpopulation by killing half the inhabitants. As all things should be Thanos I know what its like to lose.

I will shred this universe down to its last atom and then create a new one teaming life that knows what it is lost but only what it has been given. Cap believes in the sanctity of individual lives as well as the intrinsic rightness of freedom. They would wield its power but our ally knows its workings as they never will.

Of course Im joking and reaching here. Thanos said thats what he wanted to solve and she just kind of reacted like Yes of course. He has to face the person he loves most and reflect on the sacrifices he made to win.

When Gamoras soul asks him What did it cost Thanos replies Everything. Midway through Avengers. If life is left unchecked life will cease to exist Thanos says.

Thanos accepts the price. We figured out how to be more efficient in our energy usage. Spoken about Thanos.

It is not what is lost but only what it is been given a grateful universe. Thanos found himself inside the world of the Soul Stone where he met a reflection of a young Gamora telling her he finally completed his mission. I think the scene was included because Thanos regrets having to sacrifice her just to achieve his main goal.