What 25 inventions does humanity NEED to create?

[Maximum7]

Sorry. I won't make anymore.

 

[Birdjaguar]

Sorry. I won't make anymore.

If you have text for an actual book, you could post some of those descriptions for OTers to review and comment on.

 

[tuckerkao]

Flying saucer that's capable to travel beyond the moon and Mars, so the second planet can be established.