Bill Gates set aside technology Tuesday at Stanford University to talk to a packed Memorial Hall about his retirement plans, guitars and some bald facts about funding on disease research.
He compared baldness to malaria, in terms of the amount spent on prevention research.
"The ratio's about 50 to 1 for baldness," he said. "Malaria of course kills about a million people a year."
Gates, the Microsoft chairman and co-founder, talked about his philanthropy efforts and the key role that students and universities play in technological innovation today.
His talk coincided with an announcement by Microsoft that it would make its software-development tools available for free to high school and college students.
"Students have really been at the heart of a lot of breakthroughs," Gates said. "It's a wonderful time to be a student." He alluded to the fact that he began Microsoft while a student, but later dropped out of Harvard University as Microsoft began to take off.
Stanford students and faculty members filled the university's Memorial Hall to hear Gates, who plans to step away from a full-time role at Microsoft this year in order to concentrate on his work with the Bill and Melinda Gates Foundation.
Gates launched his talk with a humorous video detailing his retirement plans, one of which was to replace The Edge as U2's guitarist.
The video included numerous celebrity cameos, including Bono, who vainly tried to convince Gates that there were no openings in the band.
Other appearances were by Steven Spielberg, Jon Stewart, Jay Z and George Clooney, who told Gates he could not star in "Ocean's 14" because there were no plans to make that film.
NBC anchor Brian Williams and Democratic presidential candidates Hillary Clinton and Barack Obama also made appearances.
On a more serious note, Gates praised Stanford and other universities for the role they play in innovation.
"One of the best investments any company makes is in its research group and in the relationship its research group has with universities," Gates said.
Gates said much of his philanthropic work is concentrated on curing diseases, especially those diseases that are life-threatening in the Third World. He lamented how little money is devoted to finding a cure for many of those diseases, such as malaria, which receives much less funding than the search for a cure for baldness.