There are many technologies that may benefit humanity now and in into the future. Desalination technology may benefit humanity. Sustainable energy technologies may benefit humanity. Plasma arc gasification technologies may benefit humanity. Electric cars may benefit humanity. Autonomous cars may benefit humanity. Solar and wind energy may benefit humanity. Utilizing tidal energy may benefit humanity.
Technological research related to warp field mechanics, like that being done by Harold White in affiliation with NASA, and which may lead to the development of warp drive technology may benefit humanity. The SENS Research Foundation is conducting research which may lead to radical life extension technologies, and such technologies may benefit humanity; Calico is another organization which may develop such technologies.
Hopefully more young adults will attempt to learn about topics at university and colleges that will enable them to conduct research related to medical and/or other scientific technologies that have the potentially to benefit millions or billions of humans. Nanotechnologies have the potential to benefit humanity greatly, it seems. Electronic ink technologies may benefit humanity. The Internet is certainly a technologies which has benefited humanity, ultimately. Hopefully technologies will perpetually be developed that benefit humanity.
There are many companies and organizations that are developing and/or attempting to developing interesting technologies that may benefit humanity. Google is certainly developing some interesting technologies. SpaceX and Tesla Motors also seem to be developing some interesting technologies. Amazon is developing some interesting technologies, it seems. Hopefully more individuals will conduct medical and/or other scientific research related to technologies that may benefit humans on Earth. Technologies related to space exploration may benefit all humans eventually.
Technologies related to transportation and medicine benefit many humans on Earth. Computers have certainly been a technology that have brought a great deal of prosperity to humanity. Bio-medical technologies have helped humans to live longer lives. Hopefully a great deal of time, energy and resources will be developed to research related to technologies that will benefit all humans. Hopefully technology will help to create more peace on Earth. It seems true that there are many technologies that do, can and will exist that may benefit millions or billions of humans on Earth.