11. He Built His Own Supercomputer
Jared Leto is a massive fan of technology and he spends a great deal of his spare time updating his social media accounts and sharing pointers on how to get the most out of his favourite apps. In addition, worldwide technology conferences are somewhat standard stomping grounds for Jared Leto. The actor/singer often participates in keynote events, invests in young companies such as Surf Air and Nest, and is the founder of several firms himself. Being extremely active in the realm of tech and very much liking working with computers, one of his most valued possessions is a supercomputer that he actually built himself from the parts of others.