Given the overwhelming amount of depressing/terrible things going on in the world right now, it’s easy to get bogged down in cynicism.

Then a story like this comes up that reminds you that hey, there are some really, really good people out there doing really, really good things too.

Albert Manero is a Fulbright scholar and doctoral student in mechanical engineering at the University of Central Florida. He’s currently working on building and donating low-cost 3D-printed bionic limbs to kids around the world through his volunteer group Limbitless Solutions. Using 3D printing technology, Albert is able to provide those in need with bionic limbs for a fraction of what they would normally cost (an arm, for example, is $300 using this method versus about $40,000 made the traditional way).

Robert Downey Jr. got involved in Albert’s group and, when he learned about a 7-year-old boy named Alex who “loves superheroes and riding his bike,” and who was born with a partially developed right arm, Iron Man decided to pitch in himself.

View image on Twitter

In the video below (via CNET), you’ll see RDJ presenting Alex with his new arm in true Tony Stark fashion. Be warned: you may need some tissues at the ready before watching.

For more on Limbitless Solutions, please visit their website, and check out Microsoft’s The Collective Project as well, who helped to make Albert’s dream become a reality.

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