The ability to invent a Time Machine would be great, for me to make something so brilliant. The invention of something can go back in time and go to future would be great. A machine that could make life a little easier.
A chance to go back in time would be great, traveling the world when it wasn’t polluted or filled with hate and involved with so much violence. Maybe be able to give a child to see their parents from the past, maybe even the day before they passed away in that car accident. Because to that child it would of mint the world for her to see them again. Or maybe be able to help someone find a love one who has been lost for the last 5 months. Being able to see the glow on the parents face to see their baby. Or maybe taking a 3rd grade class to go see the Dinosaurs and explore the wonders of the past and what to come in the future.
I would event this machine to help others and develop more experience for children and elders, and maybe help people realize that always make the right choices. When you’re able to realize you’ve done something bad and be able to fix it would be fantastic.