Technology That We Would Uninvent If We Could

First of all, technology is important now in many things. But there are some of that not successful in this
time like cloning technology. They are trying to return back some animals that imposable to do like dinosaurs.The truth is that technology wast too much money for some thing imposable to improve.
I hear about the people who want to cloning themselves but what the advantage from that. Would be better if they spend the money to help the people dieing from starving and diseases in poor countries.
To me that technology wasting time and money for nothing.