I want to automate scientific research. There are too many problems, too much data and not enough scientists. We could find cures to cancer, rare genetic diseases, new forms of energy, better batteries, better every thing.
Take finding cures for cancer. You could automate finding the drug candidates, automate the manufacture of the experiment and preparing the drug candidates, automate the testing and automate the analysis on a massive scale. The limit won't be the number of scientists but physical barriers like energy and materials.
Automation has the potential to make us lead wonderful lives and we should not deny that from happening. The implementation matters though. There is going to be massive disruption to society and that needs to be handled carefully.