Advance to help Humanity

[McDoogins]

What one technological, science, social, political........ advance would you like to have happen that would benefit humanity. For instance cost effective desalinization, safer nuclear power generation, agricultural breakthrough. Feel free to give more than one. Just wondering.

Mods, change if I selected the wrong category.

Thanks.

Terraforming. The ability to build a new earth.

I know there are alot of planets out there that could be habitable, but aren't they super far away from Earth?

Also, the creation of Megaman X would surely bring about a peaceful era. Ignore what happens in the Zero series.